All articles

Insight into the pulsar emmision mechanism using subpulse drifting: Subpulse drifting in 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...


Star-forming S0 Galaxies in SDSS-MaNGA: fading spirals or rejuvenated S0s?

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...


The Great Dimming of Betelgeuse: A Stellar Tipping Point?

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...


How do astronomers understand the evolution of young stars in 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...


Why are some jets curved: presence of dancing 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...


Core-collapse supernova from a possible progenitor star of 100 solar mass

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...