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Atomic Hydrogen and GMRT

Atomic Hydrogen and GMRT

Why in news? The Giant Metrewave Radio Telescope (GMRT) which is located in India’s Pune, has detected a radio signal originating from an extremely distant galaxy.

About:

  • Atomic hydrogen is the basic fuel required for star formation in a galaxy.
  • When hot ionized gas from the surrounding medium of a galaxy falls onto the universe, the gas cools and forms atomic hydrogen.
  • This atomic hydrogen then becomes molecular hydrogen and eventually leads to the formation of stars.
  • Atomic hydrogen emits radio waves of 21 cm wavelength, which helps in the direct tracing of the atomic gas content in nearby and distant galaxies.

Giant Metrewave Radio Telescope (GMRT)

  • It is a low-frequency radio telescope that helps investigate various radio astrophysical problems ranging from nearby solar systems to the edge of the observable universe.
  • It is operated by the National Centre for Radio Astrophysics (NCRA), a part of the Tata Institute of Fundamental Research, Mumbai.

 

https://www.wionews.com/science/india-based-telescope-detects-faint-radio-signal-from-an-extremely-distant-galaxy-553716/amp

 

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