CoCo 2o2o: Cosmology in Colombia

Measuring Galaxy Assembly Bias in IllustrisTNG

25 Sept 2020, 10:20

20m

CoCo

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 $M_{\star }>{10}^9{M}_{\odot }{h}^{-1}$ 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.

Presentation materials

YCamargo_JForero.pdf