Title
A flexible subhalo abundance matching model for galaxy clustering in redshift space
Speaker
Sergio Contreras (Donostia International Physics Center)
Abstract

In this talk, I will present the SubHalo Abundance Machine extended model (SHAMe), a state-of-the-art galaxy population model capable of reproducing galaxy clustering in real and redshift space. This method uses a low-resolution gravity-only simulation, and it includes orphan and tidal disruption prescriptions for satellite galaxies, and a flexible amount of galaxy assembly bias. Furthermore, it includes recipes for star formation rate (SFR) based on the dark matter accretion rate. I will show the performance of this model when reproducing the galaxy clustering of complex galaxy formation models (such as Semi-Analytical models and hydrodynamic simulation) and observations. I will also show how this model can simultaneously reproduce galaxy clustering and galaxy-galaxy lensing, proving that this method does not have the so-called "lensing-is-low" problem. I will end this talk by showing the capacity of this model to constrain cosmological information from galaxy clustering.
 

Date
Venue
Sala 201, Módulo 15
Organizer
Weiguang Cui
Type of Event
Seminar poster