The Distinct Stellar-to-Halo Mass Relations of Satellite and Central Galaxies: Insights from the IllustrisTNG Simulations

25 Feb 2020 Engler Christoph Pillepich Annalisa Joshi Gandhali D. Nelson Dylan Pasquali Anna Grebel Eva K. Lisker Thorsten Zinger Elad Donnari Martina Marinacci Federico Vogelsberger Mark Hernquist Lars

We study the stellar-to-halo mass relation (SHMR) for central and satellite galaxies with total dynamical masses above 10^10.5 Msun using the suite of cosmological magneto-hydrodynamical simulations IllustrisTNG. In particular, we quantify environmental effects on satellite populations from TNG50, TNG100, and TNG300 located within the virial radius of group- and cluster-like hosts with total masses of 10^12-15.2 Msun... (read more)

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  • ASTROPHYSICS OF GALAXIES