5 papers · 1 filter
Correlation between baryonic process and galaxy assembly bias
Zilan Xiao, Junyu Hua, Zhongxu Zhai +2
Galaxy assembly bias (GAB) is the dependence of galaxy clustering on secondary properties beyond halo mass. In this work, we study the connections between GAB and baryonic processe…
The Curious Case of Centaurus A II: On the Subject of the Quenched satellites
Sachi Weerasooriya, Mia Sauda Bovill, Matthew A. Taylor +6
The satellite system of Centaurus A presents a curious cosmological puzzle: while the global population is consistent with theoretical expectations, its inner regions (d<150 kpc) e…
Stellar Mass Growth in the First Galaxies: Theory and Observation
Alan Dressler, Andrew Benson
We compare the growth in stellar mass of galaxies in the epoch with predictions of a semi-analytic galaxy formation model - Galacticus. In contrast to diverse and controve…
The abundance and properties of the lowest luminosity dwarf galaxies around the Milky Way: Insights from Semi-Analytic Models
Niusha Ahvazi, Andrew B. Pace, Christopher T. Garling +11
We investigate the formation and observable properties of faint satellite galaxies (M$_\rm V > -3$) in Milky Way-like halos using the semi-analytic galaxy formation model Galacticu…
Star formation beyond galaxies: widespread in-situ formation of intra-cluster stars
Niusha Ahvazi, Laura V. Sales, Julio F. Navarro +3
We study the fraction of the intra-cluster light (ICL) formed in-situ in the three most massive clusters of the TNG50 simulation, with virial masses M. We…