Tag General
We Indians celebrate National Science Day on 28th February each year to mark the discovery of the Raman effect by Sir C. V. Raman. Some of Raman’s discoveries like the Raman effect (for which he was awarded the Nobel prize),...
Being involved in research means dealing with a lot of papers on a day to day basis. Be it reading them, organizing them, or referencing them we often face a perilous task. A collection of scores of pdf documents scattered...
GitHub has become the go-to tool for software engineers across the world to keep their codes together and collaborate with each other. Being easy, seamless, and available on all the platforms makes it a brilliant choice indeed.
Prof. Thanu Padmanabhan, one of the stalwarts of theoretical physics, and a shining star of the Indian scientific community, left his mortal abode on the 17th of September this year. With a stellar career spanning over four decades, he has...
CosmicVarta is a team effort where we all come together to discuss astronomy and related tools and ideas. Come join us on this journey!
Tag Popular
Being involved in research means dealing with a lot of papers on a day to day basis. Be it reading them, organizing them, or referencing them we often face a perilous task. A collection of scores of pdf documents scattered...
GitHub has become the go-to tool for software engineers across the world to keep their codes together and collaborate with each other. Being easy, seamless, and available on all the platforms makes it a brilliant choice indeed.
Prof. Thanu Padmanabhan, one of the stalwarts of theoretical physics, and a shining star of the Indian scientific community, left his mortal abode on the 17th of September this year. With a stellar career spanning over four decades, he has...
CosmicVarta is a team effort where we all come together to discuss astronomy and related tools and ideas. Come join us on this journey!
Tag Thanu Padmanabhan
Prof. Thanu Padmanabhan, one of the stalwarts of theoretical physics, and a shining star of the Indian scientific community, left his mortal abode on the 17th of September this year. With a stellar career spanning over four decades, he has...
Tag solar wind
Light when seen correctly provides rich information on what happens in the cosmos. In this article, we showcase our work on identifying signatures of the solar wind in the solar chromosphere – far lower in the solar atmosphere than what...
This article takes the reader through a journey of inferring the cosmos - specifically our dear neighbour Sun - through various properties of light. The journey meanders through our work on understanding solar chromospheric properties through spectral lines, and seems...
The focus of this article is solar wind. I first take the reader through the theory & observations, and various properties of solar wind. Then, I take a detour through machine and deep learning which form the basis of our...
Tag deep learning
The focus of this article is solar wind. I first take the reader through the theory & observations, and various properties of solar wind. Then, I take a detour through machine and deep learning which form the basis of our...
Tag neural networks
The focus of this article is solar wind. I first take the reader through the theory & observations, and various properties of solar wind. Then, I take a detour through machine and deep learning which form the basis of our...
Tag source regions
The focus of this article is solar wind. I first take the reader through the theory & observations, and various properties of solar wind. Then, I take a detour through machine and deep learning which form the basis of our...
Tag Variable stars
Curiosity is what has driven mankind to observations of new phenomena. Every twinkling star in the night sky is definitely not due to the atmospheric refraction of earth. Rather, one might be looking at a variable star, each with a...
Tag transient events
Curiosity is what has driven mankind to observations of new phenomena. Every twinkling star in the night sky is definitely not due to the atmospheric refraction of earth. Rather, one might be looking at a variable star, each with a...
Tag Light Curve
Curiosity is what has driven mankind to observations of new phenomena. Every twinkling star in the night sky is definitely not due to the atmospheric refraction of earth. Rather, one might be looking at a variable star, each with a...
Tag Sun; Differential Rotation; NSSL; Theory
It is well known that the Sun rotates differentially, i.e. its equator rotates faster than the pole. Not only at the surface, but the solar rotation profile also varies with the radius, which was discovered in helioseismic observation. This observation...
Tag Exoplanets
Polarization is an emerging technique in the field of exoplanets. Understanding the basic physics behind the polarization of the light observed from the planets can help us study them in detail. One such aspect is to study the polarization of...
Tag Polarization
Polarization is an emerging technique in the field of exoplanets. Understanding the basic physics behind the polarization of the light observed from the planets can help us study them in detail. One such aspect is to study the polarization of...
Tag Planetary atmospheres
Polarization is an emerging technique in the field of exoplanets. Understanding the basic physics behind the polarization of the light observed from the planets can help us study them in detail. One such aspect is to study the polarization of...
Tag Phase curves
Polarization is an emerging technique in the field of exoplanets. Understanding the basic physics behind the polarization of the light observed from the planets can help us study them in detail. One such aspect is to study the polarization of...
Tag solar
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag instrumentation
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag solar corona
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag ADITYA
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag VELC
One of the science goals of the Aditya L1 is to map the coronal magnetic field topology. The infrared channel of the VELC payload of the Aditya L1 is equipped with a spectropolarimeter to perform full stokes spectropolarimetric observations in...
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag spectroscopy
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag multi-slit
This article is the review of a journal paper on the Visible Emission Line Coronagraph, the primary payload onboard India’s first solar space mission, ADITYA-L1. The paper discusses some technical details of VELC and the work done in analyzing them....
Tag Statistical methods
Pre-main-sequence (PMS) stars evolve into the main-sequence (MS) phase over a period of time. Interestingly, we found a scarcity of studies in the existing literature that examine and attempt to better understand the stars in the PMS to MS transition...
Tag Photometric techniques
Pre-main-sequence (PMS) stars evolve into the main-sequence (MS) phase over a period of time. Interestingly, we found a scarcity of studies in the existing literature that examine and attempt to better understand the stars in the PMS to MS transition...
Tag Emission-line stars
We present a catalog of 3339 hot emission-line stars (ELS) identified from 451,695 O, B, and A type spectra, provided by the LAMOST DR5 release. We developed an automated python routine that identified 5437 spectra having a peak between 6561...
Pre-main-sequence (PMS) stars evolve into the main-sequence (MS) phase over a period of time. Interestingly, we found a scarcity of studies in the existing literature that examine and attempt to better understand the stars in the PMS to MS transition...
Tag Be stars
Pre-main-sequence (PMS) stars evolve into the main-sequence (MS) phase over a period of time. Interestingly, we found a scarcity of studies in the existing literature that examine and attempt to better understand the stars in the PMS to MS transition...
Tag Evolution
Pre-main-sequence (PMS) stars evolve into the main-sequence (MS) phase over a period of time. Interestingly, we found a scarcity of studies in the existing literature that examine and attempt to better understand the stars in the PMS to MS transition...
Tag Spectropolarimeter
One of the science goals of the Aditya L1 is to map the coronal magnetic field topology. The infrared channel of the VELC payload of the Aditya L1 is equipped with a spectropolarimeter to perform full stokes spectropolarimetric observations in...
Tag Aditya-L1
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
One of the science goals of the Aditya L1 is to map the coronal magnetic field topology. The infrared channel of the VELC payload of the Aditya L1 is equipped with a spectropolarimeter to perform full stokes spectropolarimetric observations in...
Tag stars
With the gravitational wave observations capturing the coalescence of compact objects, hunting for black holes has taken quite a front-row seat in astronomical observations. Here, we discuss two such detection of black holes in orbit with a main sequence companion,...
Starting from the history of star classification in the millinniums, this interesting note will take you through some of the very basic concepts on emission-line stars. You will be able to understand what they are and why these type of...
A general article exploring some of the most extreme stars of the universe. Each one of them deserves the word ‘most’ for varied reasons. Just read and enjoy the mysterious cosmos sitting at home.
Tag Gravitational waves
Space is quite inhomogeneous at small scales. These inhomogeneities may play a significant role in governing the physical phenomena at this scale. Here we have analysed the impact of these inhomogeneities on the Gravitational Wave (GW) observables. For this analysis...
Gravitational waves are invisible ripples in space travel at the speed of light. It is generated in different scenarios, such as when two celestial bodies orbit around each other, an isolated body with tri-axial symmetry spins, inhomogeneity in matter distribution...
Tag Neutron Stars
Long after humans figured out that the small bright dots in the night sky were just another sun-like object, and not very long after the discovery of the neutron, in the year 1933, Baade and Zwicky theorized the existence of...
Observed pulsars are misaligned in nature. The misalignment scenario occurs when the rotation axis and the magnetic axis of the star forms a finite non-zero angle between them. This scenario gives rise to very interesting phenomenons. This article explores such...
Researchers from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, present the new measurements of the spin and orbital parameters of the binary star system ‘Cen X-3’. This work is a step forward in understanding the complex dynamics of the...
Estimating the strength of the magnetic field of a neutron star in a binary star system ‘Cen X-3’
Gravitational waves are invisible ripples in space travel at the speed of light. It is generated in different scenarios, such as when two celestial bodies orbit around each other, an isolated body with tri-axial symmetry spins, inhomogeneity in matter distribution...
Tag White dwarfs
Gravitational waves are invisible ripples in space travel at the speed of light. It is generated in different scenarios, such as when two celestial bodies orbit around each other, an isolated body with tri-axial symmetry spins, inhomogeneity in matter distribution...
Tag popular
CosmicVarta celebrates its first birthday today! Hurray!
It was a wonderful year indeed.
Today, we take a look back at our journey and briefly talk about our future plans.
As part of the National Science day celebrations, the Indian Institute of Astrophysics organised a panel discussion titled- Bengaluru The Astronomy City. The focus of the meeting was to educate the young students regarding various opportunities in astronomy and astrophysics...
A significant fraction of the advances in science and technology arises due to seminal contributions by women - all the while tackling a series of battles against social norms and skewed opportunities. Even today, there exists a lack of representation...
Progress is possible only when everyone capable of contributing is given an equal chance irrespective of gender, community and nationality. While there is a long way to go before this gap is fulfilled, it should be noted that we as...
A popular article exploring how the age of the Universe was calculated.
Tag age_of_universe
A popular article exploring how the age of the Universe was calculated.
Tag big_bang
A popular article exploring how the age of the Universe was calculated.
Tag sun
A popular article exploring how the ages of the Earth and Moon were measured.
XSM onboard Chandrayaan 2 observed the Sun during its minimum activity period in 2019-2020. Using this data, the researchers have for the first time detected a very large number of small scale explosions, called microflares, happening on the Sun. The...
Tag corona
A popular article exploring how the ages of the Earth and Moon were measured.
XSM onboard Chandrayaan 2 observed the Sun during its minimum activity period in 2019-2020. Using this data, the researchers have for the first time detected a very large number of small scale explosions, called microflares, happening on the Sun. The...
Tag flares
A popular article exploring how the ages of the Earth and Moon were measured.
XSM onboard Chandrayaan 2 observed the Sun during its minimum activity period in 2019-2020. Using this data, the researchers have for the first time detected a very large number of small scale explosions, called microflares, happening on the Sun. The...
Tag x-ray
A popular article exploring how the ages of the Earth and Moon were measured.
XSM onboard Chandrayaan 2 observed the Sun during its minimum activity period in 2019-2020. Using this data, the researchers have for the first time detected a very large number of small scale explosions, called microflares, happening on the Sun. The...
Tag Pulsars
Long after humans figured out that the small bright dots in the night sky were just another sun-like object, and not very long after the discovery of the neutron, in the year 1933, Baade and Zwicky theorized the existence of...
Observed pulsars are misaligned in nature. The misalignment scenario occurs when the rotation axis and the magnetic axis of the star forms a finite non-zero angle between them. This scenario gives rise to very interesting phenomenons. This article explores such...
Researchers from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, present the new measurements of the spin and orbital parameters of the binary star system ‘Cen X-3’. This work is a step forward in understanding the complex dynamics of the...
Estimating the strength of the magnetic field of a neutron star in a binary star system ‘Cen X-3’
Tag Galaxies
This article discusses the results from our combined radio polarization and emission line study of five type-2 radio-quiet quasars. We investigate the origin of radio emission in these sources and understand what impact the local gaseous environments have on the...
AGNs are very luminous objects at the centre of active galaxies. The inner regions of these galaxies can not be resolved directly, yet the understanding of these regions can be achieved by employing indirect methods. In this study, we employed...
There is a lack of consensus on the origin of radio emission in radio-quiet (RQ) and radio-intermediate (RI) AGN. Primary contenders include low-power radio jets, winds, star-formation and coronal emission. Our multi-frequency, multi-scale radio polarization study has revealed a multi-component...
Galaxies are the building blocks of our universe. A comprehensive theory of how galaxies evolve with cosmic time is key to understanding how the universe turns out the way it is today. Decades of observational, theoretical and computational efforts have...
When observed with a radio telescope, a giant peculiar X-shaped morphology is seen in some galaxies. It is difficult to understand what gives rise to such peculiar morphology; And, to date, this is a topic of debate among astronomers themselves....
Galaxies reside in the deep potential of invisible matter called dark matter. Their dynamics is significantly affected by the distribution of dark matter around them. Distribution of dark matter around galaxies is usually known as dark matter halo. Most of...
Tag Bar Buckling
Galaxies reside in the deep potential of invisible matter called dark matter. Their dynamics is significantly affected by the distribution of dark matter around them. Distribution of dark matter around galaxies is usually known as dark matter halo. Most of...
Tag Boxy/Peanut shape bulges
Galaxies reside in the deep potential of invisible matter called dark matter. Their dynamics is significantly affected by the distribution of dark matter around them. Distribution of dark matter around galaxies is usually known as dark matter halo. Most of...
Tag Solar physics
This article traces the origins of the coronal heating problem, and describes in vivid detail our efforts in resolving this through machine learning. This is a non-technical article based on our paper, but references have been appended for the interested...
Tag machine learning
This article traces the origins of the coronal heating problem, and describes in vivid detail our efforts in resolving this through machine learning. This is a non-technical article based on our paper, but references have been appended for the interested...
Tag coronal heating
Light when seen correctly provides rich information on what happens in the cosmos. In this article, we showcase our work on identifying signatures of the solar wind in the solar chromosphere – far lower in the solar atmosphere than what...
This article traces the origins of the coronal heating problem, and describes in vivid detail our efforts in resolving this through machine learning. This is a non-technical article based on our paper, but references have been appended for the interested...
Tag Cosmology
‘Frontiers in Cosmology’ was a five-day international conference held at Raman Research Institute (RRI) during February 20 – 24, 2023. More than 100 participants including researchers, scientists, students and faculties from around the world attended the meet.
We study how galaxies and other sources in the early universe change the neutral universe or InterGalactic Medium (IGM) into the ionized one. We compare different kinds of source models and how they ionize the neutral universe which mainly consists...
Space is quite inhomogeneous at small scales. These inhomogeneities may play a significant role in governing the physical phenomena at this scale. Here we have analysed the impact of these inhomogeneities on the Gravitational Wave (GW) observables. For this analysis...
SARAS 3 experiment, designed and developed at Raman Research Institute, has conclusively refuted the claim of detection of the signal from cosmic dawn by EDGES experiment. It has become the first experiment worldwide to reach the required sensitivity and cross-verify...
Most of the massive galaxies in the Universe host a supermassive black hole (SMBH) at their center. A minority among them are known as active galaxies and host active galactic nuclei (AGNs). These AGN are believed to be powered by...
Fast Radio Bursts are millisecond-duration radio transients of extragalactic origin. Their dispersion measures are sensitive to the presence of ionized matter along their lines of sight. This unique measurable makes FRBs a promising cosmological probe that can shed light on...
Tag Fast Radio Bursts
Most of the massive galaxies in the Universe host a supermassive black hole (SMBH) at their center. A minority among them are known as active galaxies and host active galactic nuclei (AGNs). These AGN are believed to be powered by...
Fast Radio Bursts are millisecond-duration radio transients of extragalactic origin. Their dispersion measures are sensitive to the presence of ionized matter along their lines of sight. This unique measurable makes FRBs a promising cosmological probe that can shed light on...
Tag Galaxy dark matter halos
Most of the massive galaxies in the Universe host a supermassive black hole (SMBH) at their center. A minority among them are known as active galaxies and host active galactic nuclei (AGNs). These AGN are believed to be powered by...
Fast Radio Bursts are millisecond-duration radio transients of extragalactic origin. Their dispersion measures are sensitive to the presence of ionized matter along their lines of sight. This unique measurable makes FRBs a promising cosmological probe that can shed light on...
Tag Radio transient sources
Most of the massive galaxies in the Universe host a supermassive black hole (SMBH) at their center. A minority among them are known as active galaxies and host active galactic nuclei (AGNs). These AGN are believed to be powered by...
Fast Radio Bursts are millisecond-duration radio transients of extragalactic origin. Their dispersion measures are sensitive to the presence of ionized matter along their lines of sight. This unique measurable makes FRBs a promising cosmological probe that can shed light on...
Tag Quasar absorption line spectroscopy
Most of the massive galaxies in the Universe host a supermassive black hole (SMBH) at their center. A minority among them are known as active galaxies and host active galactic nuclei (AGNs). These AGN are believed to be powered by...
Fast Radio Bursts are millisecond-duration radio transients of extragalactic origin. Their dispersion measures are sensitive to the presence of ionized matter along their lines of sight. This unique measurable makes FRBs a promising cosmological probe that can shed light on...
Tag emission-line
Starting from the history of star classification in the millinniums, this interesting note will take you through some of the very basic concepts on emission-line stars. You will be able to understand what they are and why these type of...
Tag circumstellar matter
Starting from the history of star classification in the millinniums, this interesting note will take you through some of the very basic concepts on emission-line stars. You will be able to understand what they are and why these type of...
Tag women-in science
A significant fraction of the advances in science and technology arises due to seminal contributions by women - all the while tackling a series of battles against social norms and skewed opportunities. Even today, there exists a lack of representation...
Progress is possible only when everyone capable of contributing is given an equal chance irrespective of gender, community and nationality. While there is a long way to go before this gap is fulfilled, it should be noted that we as...
Tag Astrobiology
The only life forms we know about are the ones that exist on Earth. Due to advancements in space exploration, it has become possible to send rovers, probes, space crafts, and telescopes in further deep space. With the help of...
Tag Solar chromosphere
This article takes the reader through a journey of inferring the cosmos - specifically our dear neighbour Sun - through various properties of light. The journey meanders through our work on understanding solar chromospheric properties through spectral lines, and seems...
Tag spectral lines
Light when seen correctly provides rich information on what happens in the cosmos. In this article, we showcase our work on identifying signatures of the solar wind in the solar chromosphere – far lower in the solar atmosphere than what...
This article takes the reader through a journey of inferring the cosmos - specifically our dear neighbour Sun - through various properties of light. The journey meanders through our work on understanding solar chromospheric properties through spectral lines, and seems...
Tag Featured
We Indians celebrate National Science Day on 28th February each year to mark the discovery of the Raman effect by Sir C. V. Raman. Some of Raman’s discoveries like the Raman effect (for which he was awarded the Nobel prize),...
Tag Indian National Science Day
We Indians celebrate National Science Day on 28th February each year to mark the discovery of the Raman effect by Sir C. V. Raman. Some of Raman’s discoveries like the Raman effect (for which he was awarded the Nobel prize),...
Tag Catalog
We present a catalog of 3339 hot emission-line stars (ELS) identified from 451,695 O, B, and A type spectra, provided by the LAMOST DR5 release. We developed an automated python routine that identified 5437 spectra having a peak between 6561...
Tag radio astronomy
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag radio interferometers
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag space telescopes
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag very long baseline interferometry
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag artificial satellites
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag space observatories
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag low frequency radio
The study of the cosmos is only complete when we can receive and analyse data from the entire electromagnetic spectrum, ranging from picometer-sized gamma rays to several meters long radio waves. This realization is what led to the advent of...
Tag Sun
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
XSM onboard Chandrayaan-2 observed the Sun during the deepest solar minimum of the past century from in 2019-2020. By studying the XSM spectra for the days when the Sun was very quiet, researchers have found that the abundances of all...
Tag Corona
XSM onboard Chandrayaan-2 observed the Sun during the deepest solar minimum of the past century from in 2019-2020. By studying the XSM spectra for the days when the Sun was very quiet, researchers have found that the abundances of all...
Tag Chandrayaan-2
XSM onboard Chandrayaan-2 observed the Sun during the deepest solar minimum of the past century from in 2019-2020. By studying the XSM spectra for the days when the Sun was very quiet, researchers have found that the abundances of all...
Tag Elemental abundances
XSM onboard Chandrayaan-2 observed the Sun during the deepest solar minimum of the past century from in 2019-2020. By studying the XSM spectra for the days when the Sun was very quiet, researchers have found that the abundances of all...
Tag Radio jets
When observed with a radio telescope, a giant peculiar X-shaped morphology is seen in some galaxies. It is difficult to understand what gives rise to such peculiar morphology; And, to date, this is a topic of debate among astronomers themselves....
Tag Magnetohydrodynamics
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
When observed with a radio telescope, a giant peculiar X-shaped morphology is seen in some galaxies. It is difficult to understand what gives rise to such peculiar morphology; And, to date, this is a topic of debate among astronomers themselves....
Tag Cosmic dawn
SARAS 3 experiment, designed and developed at Raman Research Institute, has conclusively refuted the claim of detection of the signal from cosmic dawn by EDGES experiment. It has become the first experiment worldwide to reach the required sensitivity and cross-verify...
Tag SARAS
SARAS 3 experiment, designed and developed at Raman Research Institute, has conclusively refuted the claim of detection of the signal from cosmic dawn by EDGES experiment. It has become the first experiment worldwide to reach the required sensitivity and cross-verify...
Tag EDGES
SARAS 3 experiment, designed and developed at Raman Research Institute, has conclusively refuted the claim of detection of the signal from cosmic dawn by EDGES experiment. It has become the first experiment worldwide to reach the required sensitivity and cross-verify...
Tag solar atmosphere
Light when seen correctly provides rich information on what happens in the cosmos. In this article, we showcase our work on identifying signatures of the solar wind in the solar chromosphere – far lower in the solar atmosphere than what...
Tag switchbacks
Light when seen correctly provides rich information on what happens in the cosmos. In this article, we showcase our work on identifying signatures of the solar wind in the solar chromosphere – far lower in the solar atmosphere than what...
Tag Accretion
Hydrodynamic flows around black holes is a fascinating area of research that provides a window into the processes that power relativistic jets and energetic particle acceleration. However, this is a challenging task when studied using the full general relativistic framework....
Yash Bhargava from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, takes us through the journey of the death of a star in this wonderful article about his work.
Tag Accretion discs
Yash Bhargava from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, takes us through the journey of the death of a star in this wonderful article about his work.
Tag Black hole physics
Yash Bhargava from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, takes us through the journey of the death of a star in this wonderful article about his work.
Tag X-rays
Yash Bhargava from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, takes us through the journey of the death of a star in this wonderful article about his work.
Tag X-ray binaries
Yash Bhargava from Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, takes us through the journey of the death of a star in this wonderful article about his work.
Tag polarization; clouds; ISM; proper motion; GAIA
Stars take birth in molecular clouds. The presence of magnetic fields everywhere in the universe naturally creates a curiosity to investigate their role at all the stages of star fomation. The motion of clouds through the interstellar medium in the...
Tag Moon
On account of International Moon Day, we present a brief overview of the formation scenarios of the Moon. We also discuss the findings of Chandrayaan.
Tag International Moon Day
On account of International Moon Day, we present a brief overview of the formation scenarios of the Moon. We also discuss the findings of Chandrayaan.
Tag Chandrayaan
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
On account of International Moon Day, we present a brief overview of the formation scenarios of the Moon. We also discuss the findings of Chandrayaan.
Tag FIP effect
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag FIP bias
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag solar flares
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag abundance
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag XSM
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag X-ray spectroscopy
In this article, we presented the temporal evolution of elemental abundances during solar flares of GOES B1−B4 class, the weakest events for which such studies have been possible so far, using observations with XSM on board Chandrayaan-2. This study was...
Tag gamma-ray burst
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag GRB
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag GRB 210205A
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag AT2021any
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag ZTF21aaeyldq
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag Devasthal Optical Telescope
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag DOT
India has a long history of more than two decades of observations of optical counterparts of gamma-ray bursts (GRBs) using Indian meter-class telescopes like the 1.04m Sampurnanand Telescope (ST), 1.3m Devasthal Fast Optical Telescope (DFOT), 2m Himalayan Chandra Telescope (HCT),...
Tag Stars
Supernovae are extreme astrophysical transient phenomena marking the death of stars. In this article, I take you to the journey of the life of a star as massive as 100 times our sun. Through the state-of-the-art simulation tool MESA, we...
Tag Supernova
As the saying goes, “न कंचित् शाश्वतम्” (lit. Nothing is permanent), and hence the nature of this universe. The ever-evolving twinkles in the starry night are also non-discriminate towards this concept. If a star is born, it ought to die....
Supernovae are extreme astrophysical transient phenomena marking the death of stars. In this article, I take you to the journey of the life of a star as massive as 100 times our sun. Through the state-of-the-art simulation tool MESA, we...
Tag Blackholes
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Jet precession
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Shock acceleration
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Radiation mechanisms
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Active galaxies
Embark on a cosmic journey as Gourab Giri explores the enigmatic X-shaped structures observed in radio galaxies, formed by the ejection of jets from supermassive black holes.
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Jet-Galaxy interaction
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Dual AGN
A small percentage of the ejected hot plasma flows (the jets) from supermassive blackholes are observed to deviate from their intended path, resulting in unusual jetted morphologies. One of these peculiarities appears when the jet starts to dance /precess around...
Tag Young star clusters
This article is based on the paper published in the Journal of Astrophysics & Astronomy. The article shows the results of our deep optical photometric observations of a young cluster NGC 1893 taken with the 3.6m Devasthal Optical Telescope. Based...
Tag stellar evolution
This article is based on the paper published in the Journal of Astrophysics & Astronomy. The article shows the results of our deep optical photometric observations of a young cluster NGC 1893 taken with the 3.6m Devasthal Optical Telescope. Based...
Tag Initial Mass Function
This article is based on the paper published in the Journal of Astrophysics & Astronomy. The article shows the results of our deep optical photometric observations of a young cluster NGC 1893 taken with the 3.6m Devasthal Optical Telescope. Based...
Tag early warning signals
The Great Dimming of Betelgeuse (alpha Orionis) in late 2019 puzzled astronomers across the globe. The star appeared the faintest in all its modern recorded history. The mystery mounted as it quickly regained brightness in the next few months, and...
Tag stellar dynamics
The Great Dimming of Betelgeuse (alpha Orionis) in late 2019 puzzled astronomers across the globe. The star appeared the faintest in all its modern recorded history. The mystery mounted as it quickly regained brightness in the next few months, and...
Tag dynamical systems
The Great Dimming of Betelgeuse (alpha Orionis) in late 2019 puzzled astronomers across the globe. The star appeared the faintest in all its modern recorded history. The mystery mounted as it quickly regained brightness in the next few months, and...
Tag critical transition
The Great Dimming of Betelgeuse (alpha Orionis) in late 2019 puzzled astronomers across the globe. The star appeared the faintest in all its modern recorded history. The mystery mounted as it quickly regained brightness in the next few months, and...
Tag SDSS
Galaxies are the building blocks of our universe. A comprehensive theory of how galaxies evolve with cosmic time is key to understanding how the universe turns out the way it is today. Decades of observational, theoretical and computational efforts have...
Tag MaNGA
Galaxies are the building blocks of our universe. A comprehensive theory of how galaxies evolve with cosmic time is key to understanding how the universe turns out the way it is today. Decades of observational, theoretical and computational efforts have...
Tag galaxy morphology
Galaxies are the building blocks of our universe. A comprehensive theory of how galaxies evolve with cosmic time is key to understanding how the universe turns out the way it is today. Decades of observational, theoretical and computational efforts have...
Tag S0
Galaxies are the building blocks of our universe. A comprehensive theory of how galaxies evolve with cosmic time is key to understanding how the universe turns out the way it is today. Decades of observational, theoretical and computational efforts have...
Tag PSR J1822−2256
Long after humans figured out that the small bright dots in the night sky were just another sun-like object, and not very long after the discovery of the neutron, in the year 1933, Baade and Zwicky theorized the existence of...
Tag Subpulse Drifting
Long after humans figured out that the small bright dots in the night sky were just another sun-like object, and not very long after the discovery of the neutron, in the year 1933, Baade and Zwicky theorized the existence of...
Tag Inhomogeneous universe
Space is quite inhomogeneous at small scales. These inhomogeneities may play a significant role in governing the physical phenomena at this scale. Here we have analysed the impact of these inhomogeneities on the Gravitational Wave (GW) observables. For this analysis...
Tag AGNs
This article discusses the results from our combined radio polarization and emission line study of five type-2 radio-quiet quasars. We investigate the origin of radio emission in these sources and understand what impact the local gaseous environments have on the...
AGNs are very luminous objects at the centre of active galaxies. The inner regions of these galaxies can not be resolved directly, yet the understanding of these regions can be achieved by employing indirect methods. In this study, we employed...
There is a lack of consensus on the origin of radio emission in radio-quiet (RQ) and radio-intermediate (RI) AGN. Primary contenders include low-power radio jets, winds, star-formation and coronal emission. Our multi-frequency, multi-scale radio polarization study has revealed a multi-component...
Tag Blackhole
This article discusses the results from our combined radio polarization and emission line study of five type-2 radio-quiet quasars. We investigate the origin of radio emission in these sources and understand what impact the local gaseous environments have on the...
AGNs are very luminous objects at the centre of active galaxies. The inner regions of these galaxies can not be resolved directly, yet the understanding of these regions can be achieved by employing indirect methods. In this study, we employed...
There is a lack of consensus on the origin of radio emission in radio-quiet (RQ) and radio-intermediate (RI) AGN. Primary contenders include low-power radio jets, winds, star-formation and coronal emission. Our multi-frequency, multi-scale radio polarization study has revealed a multi-component...
Tag Solar Physics
During astronomical observation, astronomers measure the amount of energy emitted by astronomical objects. This energy is generally measured in terms of the flux density of the source. At radio frequencies, these measurements are calibrated using calibrator sources, which have known...
Tag Solar Radio Physics
During astronomical observation, astronomers measure the amount of energy emitted by astronomical objects. This energy is generally measured in terms of the flux density of the source. At radio frequencies, these measurements are calibrated using calibrator sources, which have known...
Tag MWA
During astronomical observation, astronomers measure the amount of energy emitted by astronomical objects. This energy is generally measured in terms of the flux density of the source. At radio frequencies, these measurements are calibrated using calibrator sources, which have known...
Tag massive black holes
With the gravitational wave observations capturing the coalescence of compact objects, hunting for black holes has taken quite a front-row seat in astronomical observations. Here, we discuss two such detection of black holes in orbit with a main sequence companion,...
Tag binaries
With the gravitational wave observations capturing the coalescence of compact objects, hunting for black holes has taken quite a front-row seat in astronomical observations. Here, we discuss two such detection of black holes in orbit with a main sequence companion,...
Tag Active galactic nuclei; Radio loud quasars; Radio jets; Quasar absorption line spectroscopy
The interaction of radio jets with gas associated with the host galaxy could play an important role in determining their morphology. Such interactions may be more prevalent at high redshifts, when these powerful AGN are still the assembly sites of...
Tag scicomm
A summary of science outreach performed during the Young Astronomer’s Meeting, 2022.
Tag outreach
The Cosmology Education and Research Training Centre (COSMOS) is an upcoming state-of-the-art planetarium, along with a data training centre and resource centre in Mysuru. The Indian Institute of Astrophysics (IIA) has formed an Education and Public Outreach Committee (EPOC) for...
A summary of science outreach performed during the Young Astronomer’s Meeting, 2022.
Tag conference
A summary of science outreach performed during the Young Astronomer’s Meeting, 2022.
Tag Transients
As the saying goes, “न कंचित् शाश्वतम्” (lit. Nothing is permanent), and hence the nature of this universe. The ever-evolving twinkles in the starry night are also non-discriminate towards this concept. If a star is born, it ought to die....
Tag Observations
As the saying goes, “न कंचित् शाश्वतम्” (lit. Nothing is permanent), and hence the nature of this universe. The ever-evolving twinkles in the starry night are also non-discriminate towards this concept. If a star is born, it ought to die....
Tag Hydrodynamic Modelling
As the saying goes, “न कंचित् शाश्वतम्” (lit. Nothing is permanent), and hence the nature of this universe. The ever-evolving twinkles in the starry night are also non-discriminate towards this concept. If a star is born, it ought to die....
Tag Epoch of Reionization
We study how galaxies and other sources in the early universe change the neutral universe or InterGalactic Medium (IGM) into the ionized one. We compare different kinds of source models and how they ionize the neutral universe which mainly consists...
Tag Largest Cluster Statistics
We study how galaxies and other sources in the early universe change the neutral universe or InterGalactic Medium (IGM) into the ionized one. We compare different kinds of source models and how they ionize the neutral universe which mainly consists...
Tag Percolation
We study how galaxies and other sources in the early universe change the neutral universe or InterGalactic Medium (IGM) into the ionized one. We compare different kinds of source models and how they ionize the neutral universe which mainly consists...
Tag Black Hole Physics
Hydrodynamic flows around black holes is a fascinating area of research that provides a window into the processes that power relativistic jets and energetic particle acceleration. However, this is a challenging task when studied using the full general relativistic framework....
Tag Testing general relativity using gravitational waves
General theory of relativity proposed by Albert Einstein in 1915 has passed all the experimental and observational tests with flying colors. Gravitational waves from the merger of compact binaries such as black holes and neutron stars provide a unique opportunity...
Tag Neutron star crust
The article discusses the structure of the neutron star crust. In the neutron star’s crust, exotic structures commonly known as “nuclear pasta” are believed to exist. The pasta structure impacts various structural, thermal and transport properties of the crust and...
Tag Pasta Structure
The article discusses the structure of the neutron star crust. In the neutron star’s crust, exotic structures commonly known as “nuclear pasta” are believed to exist. The pasta structure impacts various structural, thermal and transport properties of the crust and...
Tag Solar cycle
Forecasting the strength of the solar cycle is of the utmost importance because it affects space weather and our technology-based society. By a riveting feature of the solar cycles, i.e. Waldmeier effect (WE2), we find a linear relationship between the...
Tag Sunspot
Forecasting the strength of the solar cycle is of the utmost importance because it affects space weather and our technology-based society. By a riveting feature of the solar cycles, i.e. Waldmeier effect (WE2), we find a linear relationship between the...
Tag Space weather
Forecasting the strength of the solar cycle is of the utmost importance because it affects space weather and our technology-based society. By a riveting feature of the solar cycles, i.e. Waldmeier effect (WE2), we find a linear relationship between the...
Tag clagn
An active galactic nucleus (AGN) is powered by the matter accreting onto the central supermassive black hole (SMBH) at the centre of a galaxy. Changing look (CL) AGNs are those sources that show rapid change in the column density of...
Tag blackholes
An active galactic nucleus (AGN) is powered by the matter accreting onto the central supermassive black hole (SMBH) at the centre of a galaxy. Changing look (CL) AGNs are those sources that show rapid change in the column density of...
Tag Proceedings
‘Frontiers in Cosmology’ was a five-day international conference held at Raman Research Institute (RRI) during February 20 – 24, 2023. More than 100 participants including researchers, scientists, students and faculties from around the world attended the meet.
The Department of Physics and Electronics at CHRIST (Deemed to be University) in Bangalore, Karnataka, organised the National Seminar on Advances in Astrophysics and Space Science Research (NSAASSR) from February 13 to 15, 2023. The seminar was organised as part...
Tag seminar
The Department of Physics and Electronics at CHRIST (Deemed to be University) in Bangalore, Karnataka, organised the National Seminar on Advances in Astrophysics and Space Science Research (NSAASSR) from February 13 to 15, 2023. The seminar was organised as part...
Tag national level seminar
The Department of Physics and Electronics at CHRIST (Deemed to be University) in Bangalore, Karnataka, organised the National Seminar on Advances in Astrophysics and Space Science Research (NSAASSR) from February 13 to 15, 2023. The seminar was organised as part...
Tag International
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
‘Frontiers in Cosmology’ was a five-day international conference held at Raman Research Institute (RRI) during February 20 – 24, 2023. More than 100 participants including researchers, scientists, students and faculties from around the world attended the meet.
Tag Conference
‘Frontiers in Cosmology’ was a five-day international conference held at Raman Research Institute (RRI) during February 20 – 24, 2023. More than 100 participants including researchers, scientists, students and faculties from around the world attended the meet.
Tag zeroshadowday
The Cosmology Education and Research Training Centre (COSMOS) is an upcoming state-of-the-art planetarium, along with a data training centre and resource centre in Mysuru. The Indian Institute of Astrophysics (IIA) has formed an Education and Public Outreach Committee (EPOC) for...
Tag COSMOS Mysuru
The Cosmology Education and Research Training Centre (COSMOS) is an upcoming state-of-the-art planetarium, along with a data training centre and resource centre in Mysuru. The Indian Institute of Astrophysics (IIA) has formed an Education and Public Outreach Committee (EPOC) for...
Tag India
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
Tag ISRO
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
Tag moon
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
Tag lunar exploration
India’s ambitious space program reaches new heights as Chandrayaan-3, the eagerly anticipated lunar exploration mission, prepares for launch. Get ready to witness history in the making as India embarks again on an extraordinary journey towards the Moon, marking a remarkable...
Tag GRBs
Dying heavy stars forms black holes and sometimes emit jets, producing very narrow-angle flashes of gamma rays known as Gamma-Ray Bursts (GRBs). This article summarises the findings from the follow-up of such a GRB 210204A. The GRB showed typical afterglow...
Tag Optical
Dying heavy stars forms black holes and sometimes emit jets, producing very narrow-angle flashes of gamma rays known as Gamma-Ray Bursts (GRBs). This article summarises the findings from the follow-up of such a GRB 210204A. The GRB showed typical afterglow...
Tag Black Hole
Dying heavy stars forms black holes and sometimes emit jets, producing very narrow-angle flashes of gamma rays known as Gamma-Ray Bursts (GRBs). This article summarises the findings from the follow-up of such a GRB 210204A. The GRB showed typical afterglow...
Tag Compact Objects
Dying heavy stars forms black holes and sometimes emit jets, producing very narrow-angle flashes of gamma rays known as Gamma-Ray Bursts (GRBs). This article summarises the findings from the follow-up of such a GRB 210204A. The GRB showed typical afterglow...
Tag Active galactic nuclei
Blazars are a rare class of active galactic nuclei (AGN), in which the jets are pointed directly toward our line of sight, making them one of the brightest yet extremely compact sources. Relativistic effects such as beaming makes the jet...
Tag jets
Blazars are a rare class of active galactic nuclei (AGN), in which the jets are pointed directly toward our line of sight, making them one of the brightest yet extremely compact sources. Relativistic effects such as beaming makes the jet...
Tag blazars
Blazars are a rare class of active galactic nuclei (AGN), in which the jets are pointed directly toward our line of sight, making them one of the brightest yet extremely compact sources. Relativistic effects such as beaming makes the jet...
Tag Solar exploration
The Sun has fascinated mankind since the dawn of civilization. From famines to fertile farms, every aspect of life on Earth was defined by it. Unaware of the true nature of the Sun, humans have worshipped this mighty celestial being...
Tag Galaxy Collision
Initially, early-type galaxies were considered aged, evolved systems with a reddish appearance, primarily comprising older stars and lacking young star formation due to limited gas and dust resources. However, contemporary techniques, such as integral field spectroscopy for studying star motion...
Tag Galaxy Evolution
Initially, early-type galaxies were considered aged, evolved systems with a reddish appearance, primarily comprising older stars and lacking young star formation due to limited gas and dust resources. However, contemporary techniques, such as integral field spectroscopy for studying star motion...
Tag Structures of Galaxy Mergers
Initially, early-type galaxies were considered aged, evolved systems with a reddish appearance, primarily comprising older stars and lacking young star formation due to limited gas and dust resources. However, contemporary techniques, such as integral field spectroscopy for studying star motion...
Tag Galaxy Interaction Rate
Initially, early-type galaxies were considered aged, evolved systems with a reddish appearance, primarily comprising older stars and lacking young star formation due to limited gas and dust resources. However, contemporary techniques, such as integral field spectroscopy for studying star motion...
Tag Extreme-ultraviolet polarimeter
This article explains the importance of the Sun’s coronal magnetic field. In view of this, this article elaborates the capability of spectral lines emitted in the extreme-ultraviolet and delineates the promising technique of the Hanle effect in deriving the coronal...
Tag Hanle effect
This article explains the importance of the Sun’s coronal magnetic field. In view of this, this article elaborates the capability of spectral lines emitted in the extreme-ultraviolet and delineates the promising technique of the Hanle effect in deriving the coronal...
Tag coronal magnetism
This article explains the importance of the Sun’s coronal magnetic field. In view of this, this article elaborates the capability of spectral lines emitted in the extreme-ultraviolet and delineates the promising technique of the Hanle effect in deriving the coronal...
Tag Plasma outflow
Embark on a cosmic journey as Gourab Giri explores the enigmatic X-shaped structures observed in radio galaxies, formed by the ejection of jets from supermassive black holes.
Tag Supermassive blackhole
Embark on a cosmic journey as Gourab Giri explores the enigmatic X-shaped structures observed in radio galaxies, formed by the ejection of jets from supermassive black holes.
Tag General Relativity and Quantum Cosmology
The neutron star is the most well known compact object in the Universe. It has several macroscopic properties such as mass (M), radius (R), compactness (C), tidal deformability (Λ), and moment of inertia (I), which can be observed using different...
Tag Nuclear Theory
The neutron star is the most well known compact object in the Universe. It has several macroscopic properties such as mass (M), radius (R), compactness (C), tidal deformability (Λ), and moment of inertia (I), which can be observed using different...
Tag XPoSat
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
Tag pulsars
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
Tag neutron stars
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
Tag black holes
The Indian Space Research Organisation (ISRO) commenced the new year with the launch of the X-Ray Polarimeter Satellite (XPoSat). X-ray polarization measurement is an emerging technique in X-ray astronomy and holds immense potential for enhancing our understanding of the extreme...
Tag Blazar
The process of production of high energy gamma-ray photons within the jets of blazars remains a mystery, with limited understanding of processes driving the particle accelerations over parsec scales and beyond. The complexity deepens with the detection of photons reaching...
Tag High energy astrophysics
The process of production of high energy gamma-ray photons within the jets of blazars remains a mystery, with limited understanding of processes driving the particle accelerations over parsec scales and beyond. The complexity deepens with the detection of photons reaching...
Tag Gamma-ray
The process of production of high energy gamma-ray photons within the jets of blazars remains a mystery, with limited understanding of processes driving the particle accelerations over parsec scales and beyond. The complexity deepens with the detection of photons reaching...
Tag X-ray
The process of production of high energy gamma-ray photons within the jets of blazars remains a mystery, with limited understanding of processes driving the particle accelerations over parsec scales and beyond. The complexity deepens with the detection of photons reaching...
Tag Magnetic Reconnection
The process of production of high energy gamma-ray photons within the jets of blazars remains a mystery, with limited understanding of processes driving the particle accelerations over parsec scales and beyond. The complexity deepens with the detection of photons reaching...
Tag Radio survey
Studying the spatial distribution of extragalactic source populations is vital in understanding the matter distribution in the Universe, the cosmological evolution of matter density fields and the relationship between dark matter and luminous matter. This article investigates the clustering properties...
