# CoCo 2o2o: Cosmology in Colombia

Sep 23 – 25, 2020
America/Bogota timezone

## Measuring Galaxy Assembly Bias in IllustrisTNG

Sep 25, 2020, 10:20 AM
20m

### Speaker

Yeimy Dallana Camargo Camargo (Universidad Nacional de Colombia)

### Description

The bias ($b$) is a parameter that relates the clustering of a set of objects with the clustering of underlying dark Matter. It has been found that b depends on various galaxy properties, this phenomenon is usually known as Galaxy Assembly Bias. In general, b depends on how the galaxies have formed. We quantify the galaxy assembly bias of simulated galaxies at $z = 0$ with stellar masses $M_\star >10^9M_\odot h^{-1}$ from the cosmological magnetohydrodynamic simulation IllustrisTNG. We obtain the clustering-age relation, cuts in the (g-i) colors, and the specific Star Formation Rate of central and satellite galaxies separately.

### Primary authors

Yeimy Dallana Camargo Camargo (Universidad Nacional de Colombia) Dr Jaime E. Forero Romero (Universidad de los Andes)