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India-based Telescope Detects Faint Radio Signal from an Extremely Distant Galaxy

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Telescope

Telescope

The Giant Metrewave Radio Telescope (GMRT) in India’s Pune has witnessed a radio signal initiating from an exceptionally distant galaxy. Astronomers from McGill University in Canada and the Indian Institute of Science (IISc) are behind in witnessing these signs. The conclusions have been posted in the journal Monthly Notices of the Royal Astronomical Society. With the signal traveling across an enormous astronomical length to reach us, this discovery marks a recorded point in humanity’s astronomical journey.

“The astronomical distance over which such a signal has been picked up is the largest so far by a large margin. This is also the first confirmed detection of strong lensing of 21 cm emission from a galaxy”, said the IISc in a statement.

The indication reportedly originated from the atomic hydrogen of an ‘extremely’ distant galaxy. Per IISc, nuclear hydrogen is the universe’s primary fuel for star formation.

As per the information available on the IISc website, “when hot ionised gas from the surrounding medium of a galaxy falls onto the galaxy, the gas cools and forms atomic hydrogen, which then becomes molecular hydrogen, and eventually leads to the formation of stars. Therefore, understanding the evolution of galaxies over cosmic time requires tracing the evolution of neutral gas at different cosmological epochs.”

The radio signal was reportedly fragile.

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