Affiliation: National Centre for Radio Astrophysics, India

Contribution: Oral

Title: The GMRT CATz1 Survey: The HI properties of galaxies at cosmic noon

Abstract: A major lacuna in our understanding of high-redshift galaxies is the lack of information about neutral atomic hydrogen (HI), the primary fuel for star-formation in galaxies. In this talk, I will present results from the Giant Metrewave Radio Telescope (GMRT) Cold HI AT z~1 CATz1) 21cm emission survey of the DEEP2 survey fields, which has used 21cm stacking to measure the average HI properties of star-forming galaxies at z~0.74-1.5. I will describe the implications of our results for the evolution of the baryonic content of galaxies and the cosmic SFR density of the Universe, for gas accretion onto galaxies, and for the HI mass function towards the end of the epoch of cosmic noon.

This contribution can be found here (pdf).