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Sir C. V. Raman: Raman effect and beyond
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...
Voices of the Women in Science - A list of books on women scientists
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...
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Anyway the plasma moves - it does really matter!
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...
SARAS 3 telescope refutes astrophysical origins of the claimed cosmic dawn signal
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...
Bending of Cosmic fountains, giving birth to a peculiar X-shaped galaxy
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....
How much Metal does the Quiet Sun Corona contain?
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...
EARTH-SIZED TELESCOPES FOR ASTRONOMICAL OBSERVATIONS IN THE LOW RADIO FREQUENCIES
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...
Identifying emission-line stars from a large spectroscopic database
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...
