Giant Metrewave Radio Telescope in India helps detect atomic hydrogen from far-away g

[Ajay0]

Radio signal from 9 billion light-years away from Earth captured.

Astronomers from McGill University, Canada and Indian Institute of Science (IISc), Bengaluru have detected a radio signal originating from atomic hydrogen in an extremely distant galaxy using data from the Giant Metre Wave Radio Telescope (GMRT) in Pune, India. So far, this is the largest astronomical distance over which such a signal has been picked up. It is also the first confirmed detection of strong lensing of 21 cm emission from a galaxy. The findings have been published in the monthly notices of the Royal Astronomical Society.
 

https://www.downtoearth.org.in/news/science-technology/giant-metrewave-radio-telescope-in-pune-helps-detect-atomic-hydrogen-from-far-away-galaxy-87187

https://nypost.com/2023/01/21/radio-signal-from-9-billion-light-years-away-captured/

https://www.hindustantimes.com/cities/pune-news/recordbreaking-detection-of-radio-signal-from-atomic-hydrogen-in-extremely-distant-galaxy-using-gmrt-101673892494688.html

 

Quote

 

A radio signal originating from atomic hydrogen in an extremely distant galaxy was detected by the Giant Metrewave Radio Telescope (GMRT) located in Pune. This is the largest astronomical distance over which such a signal has been picked up.

The findings have been published in the scientific journal Monthly Notices of the Royal Astronomical Society. Astronomers from McGill University in Canada and the Indian Institute of Science (IISc) in Bengaluru have used data from the telescope to detect atomic hydrogen.

 

 

[Ajay0]

Indian researchers uncover most detailed picture yet of Galaxy Cluster using uGMRT

https://www.hindustantimes.com/cities/pune-news/punes-researchers-uncover-most-detailed-picture-yet-of-galaxy-cluster-using-ugmrt-101708628260471.html
 

Quote

 

Pune-based researchers have used the upgraded Giant Metrewave Radio Telescope (uGMRT) in India to produce the most detailed image yet of the galaxy cluster, Abell 521. The new uGMRT observations led to the discovery of new extended radio emission below GHz frequences for the first time, which allows the study of turbulence and shocks in the plasma.

Radio images show beautiful arc-like radio structures at the south of the cluster, and diffuse emission at the cluster centre. The X-ray emission, detected by the Chandra Observatory, reveals a very tight resemblance with the radio structures near the cluster centre. A detailed investigation of the X-ray map reveals a strong connection for the origin of the radio structures via high velocity gas motions during the process of cluster merger. The high sensitivity and resolution of GMRT provides astronomers with new dimensions to gain knowledge about the mysteries of cluster physics.