The AstroSat UV Deep Field North: Direct determination of the UV Luminosity Function and its evolution from z~0.8-0.4

Understand

We characterize the evolution of the rest-frame 1500 $\unicode{xC5}$ UV luminosity Function (UVLF) from AstroSat/UVIT F154W and N242W imaging in the Great Observatories Origins Survey North (GOODS-N) field.

• With deep FUV observations, we construct the UVLF for galaxies at z$<0.13$ and subsequently characterise it with a Schechter function fit.
• The fitted parameters are consistent with previous determinations.
• With deep NUV observations, we are able to construct the UVLF in seven redshift bins in the range z $\sim$ 0.8 - 0.4, with galaxies identified till $\sim$2 mag fainter than previous surveys, owing to the high angular-resolution of UVIT.