The Origins of the Circumgalactic Medium in the FIRE Simulations

• Published in: arXiv.org
• Main Authors: Hafen, Z, C -A Faucher-Giguere, Angles-Alcazar, D, Stern, J, Keres, D, Hummels, C, Esmerian, C, Garrison-Kimmel, S, El-Badry, K, Wetzel, A, Chan, T K, Hopkins, P F, Murray, N
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 24.06.2019
• Subjects: Dependence; Deposition; Ejection; Galaxies; Halos; Intergalactic media; Metallicity; Origins; Particle tracking; Physics - Astrophysics of Galaxies; Physics - Cosmology and Nongalactic Astrophysics; Red shift; Satellite tracking; Stellar winds

We use a particle tracking analysis to study the origins of the circumgalactic medium (CGM), separating it into (1) accretion from the intergalactic medium (IGM), (2) wind from the central galaxy, and (3) gas ejected from other galaxies. Our sample consists of 21 FIRE-2 simulations, spanning the hal...