Friday, April 6, 2018, 3pm
Location: Planetary Hall Room 212

Lucas Hunt
United States Naval Observatory

The Evolution Luminous Compact Blue Galaxies in COSMOS Between z~0.0-1.0

Abstract

Luminous Compact Blue Galaxies (LCBGs) are a class of compact star forming galaxies that are common at z=1 and rare in the local universe. I will discuss how the LCBG population evolves between z=0.0-1.0 in the COSMOS survey region. In this study, we generated the luminosity function to show how LCBGs contribution to the luminosity density is increasing from z=0.0-1.0. We also find LCBGs make up ~8% of galaxies brighter than MB=-18.5 at z~0.1 and roughly 63% of the same galaxy population at z~0.9 indicating LCBGs are a significant population of bright star forming galaxies at z=1. We then use data from the COSMOS HI Large Extragalactic Survey (CHILES), CHILES Con Pol and the VLA-COSMOS 3Ghz Large Project to trace HI content and star formation rate of LCBGs in LCBGs to z=1. I will show upper limits of the average HI mass of LCBGs out to z=0.45 and the change in the average star formation rate of LCBGs out to z=1.