Inferring the mass content of galaxy clusters with satellite kinematics and Jeans Anisotropic modeling

2024/07/16 by Shi, Rui, Wang, Wenting, Li, Zhaozhou +7 · 1 citation
#Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2407.11721

Abstract

Satellite galaxies can be used to indicate the dynamical mass of galaxy groups and clusters. In this study, we apply the axis-symmetric Jeans Anisotropic Multi-Gaussian Expansion JAM modeling to satellite galaxies in 28 galaxy clusters selected from the TNG300-1 simulation with halo mass of log₁₀M₂₀₀/M_\odot>14.3. If using true bound satellites as tracers, the best constrained total mass within the half-mass radius of satellites, M(

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