Connection between galaxy properties and environment in the cosmic structure

Wednesday 09 Mar 2022 @ 16:00 p.m., Zoom
Unnikrishnan Sureshkumar, Jagiellonian University; Email: ukp1513[at]gmail.com

Abstract

Galaxies live in dark matter haloes and hence the galaxy properties are majorly defined by the properties of the haloes. Thus the environmental dependence of dark matter halo properties prompts a correlation between galaxy properties and the environment. In this talk, I will discuss the results from our recent works (arXiv:2102.04177 and arXiv:2201.10480) that explored how luminosities in various passbands and the associated galaxy properties are correlated with the environment. We used a set of 3.4 micro-m luminosity-selected and stellar mass-selected galaxies from the Galaxy and Mass Assembly (GAMA) survey. We made use of the galaxy two-point correlation functions and marked correlation functions to investigate the environmental correlations. I will also discuss the impact of various selection effects on the galaxy clustering measurements.