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Neural networks as optimal estimators to marginalize over baryonic effects
Francisco Villaescusa-Navarro, Benjamin D. Wandelt, Daniel Anglés-Alcázar +4
Many different studies have shown that a wealth of cosmological information resides on small, non-linear scales. Unfortunately, there are two challenges to overcome to utilize that…
Bringing faint active galactic nuclei (AGNs) to light: a view from large-scale cosmological simulations
Adrian P. Schirra, Melanie Habouzit, Ralf S. Klessen +6
The sensitivity of X-ray facilities and our ability to detect fainter active galactic nuclei (AGNs) will increase with the upcoming Athena mission and the AXIS and Lynx concept mis…
The Radio Galaxy Population in the SIMBA SImulations
Nicole Thomas, Romeel Dave, Matt J. Jarvis +1
We examine the 1.4GHz radio luminosities of galaxies arising from star formation and active galactic nuclei (AGN) within the state-of-the-art cosmological hydrodynamic simulation S…
The CAMELS project: Cosmology and Astrophysics with MachinE Learning Simulations
Francisco Villaescusa-Navarro, Daniel Anglés-Alcázar, Shy Genel +19
We present the Cosmology and Astrophysics with MachinE Learning Simulations --CAMELS-- project. CAMELS is a suite of 4,233 cosmological simulations of volu…
Cosmological simulations of quasar fueling to sub-parsec scales using Lagrangian hyper-refinement
Daniel Anglés-Alcázar, Eliot Quataert, Philip Hopkins +7
We present cosmological hydrodynamic simulations of a quasar-mass halo ( at z=2) that for the first time resolve gas transport down…
First results from SMAUG: The need for preventative stellar feedback and improved baryon cycling in semi-analytic models of galaxy formation
Viraj Pandya, Rachel S. Somerville, Daniel Anglés-Alcázar +10
Semi-analytic models (SAMs) are a promising means of tracking the physical processes associated with galaxy formation, but many of their approximations have not been rigorously tes…
Virialization of the inner CGM in the FIRE simulations and implications for galaxy discs, star formation and feedback
Jonathan Stern, Claude-André Faucher-Giguère, Drummond Fielding +13
We use the FIRE-2 cosmological simulations to study the formation of a quasi-static, virial-temperature gas phase in the circumgalactic medium (CGM) at redshifts 0<z<5, and how the…
Supermassive black holes in cosmological simulations I: M_BH-M_star relation and black hole mass function
Melanie Habouzit, Yuan Li, Rachel S. Somerville +15
The past decade has seen significant progress in understanding galaxy formation and evolution using large-scale cosmological simulations. While these simulations produce galaxies i…
Simba: The average properties of the circumgalactic medium of quasars are determined primarily by stellar feedback
Daniele Sorini, Romeel Davé, Daniel Anglés-Alcázar
We use the Simba cosmological hydrodynamic simulation suite to explore the impact of feedback on the circumgalactic medium (CGM) and intergalactic medium (IGM) around $2 \leq z \le…
The Origin and Evolution of Lyman-alpha Blobs in Cosmological Galaxy Formation Simulations
Benjamin Kimock, Desika Narayanan, Aaron Smith +8
High-redshift Lyman-alpha blobs (LABs) are an enigmatic class of objects that have been the subject of numerous observational and theoretical investigations. It is of particular in…