Type: Talk
Session: Galaxy Morphology and Low Surface Brightness Features
Author: Unnikrishnan Sureshkumar

Abstract: Low surface brightness galaxies (LSBGs), being considered to account for a significant fraction of the total number density of galaxies, play a crucial role in galaxy evolution. However, their connection to their local environment remains poorly explored, despite the well-established influence of the environment on the evolution of galaxies. In this talk, I will primarily present our recent results on the environmental correlations of various LSBG properties with the help of marked correlation function (MCF) measurements. Our results are based on the LSBG galaxy samples from the Dark Energy Survey and North Ecliptic Pole Wide field. Our findings contribute to the advancement of low surface brightness science using the Rubin LSST. I will also present results from our previous studies that investigated how luminosities in optical to mid-IR bands, stellar mass, star formation rate, and galaxy merger probability are correlated with the local environment. We also compare our measurements from the observation with those from CosmoDC2, the simulated sky catalogue designed for Rubin Observatory LSST DESC. Additionally, I will present updates from our ongoing South African in-kind contribution in the LSST GSC to cross-match Rubin and MeerKAT.