A team of Scientists from the Inter University Centre for Astronomy and Astrophysics (IUCAA) has discovered one of the earliest galaxies called AUDFs01 using AstroSat.
The galaxy is located in the Hubble Extreme Deep field, 9.3 billion light-years away from Earth.
Hubble extreme Deep Field (XDF) is a portion of space that contains approximately 5,500 galaxies, the oldest of which are seen as they were 13.2 billion years ago
XDF is recorded by the Hubble Space Telescope for over 10 years.
The galaxy was discovered using Ultraviolet Imaging Telescope (UVIT) on Astrosat.
AstroSat detected Extreme Ultraviolet light from the galaxy.
Earlier, NASA’s Hubble Space Telescope (HST), which is significantly larger than UVIT, did not detect any UV emission from this galaxy because it is too faint.
AstroSat/UVIT was able to achieve this unique feat because the background noise in the UVIT detector is much less than the ones on HST.
