36 citations · 59 across the 14 of their papers we have counts for
12 papers · 1 filter
Little Red Dots on FIRE: Exploring the formation and observational signatures of ultra-compact early galaxies
Niranjan Chandra Roy, Daniel Anglés-Alcázar, Rachel K. Cochrane +15
Little Red Dots (LRDs) are compact sources with broad Balmer lines, Balmer breaks, anomalous UV emission, rising red continuum, and uncertain origin. We use FIRE cosmological simul…
Resolving galaxy formation in the early Universe with BonFIRE and CampFIRE
Jenna Samuel, Michael Boylan-Kolchin, Robert Feldmann +16
The abundance and rapid growth of galaxies at cosmic dawn revealed by the James Webb Space Telescope challenges models of galaxy formation, motivating new simulations to uncover th…
Cold vs. Hot Gas Accretion and Angular Momentum in FIRE Simulations: From Halo to Galaxy Scales
Imran Sultan, Claude-André Faucher-Giguère, Jonathan Stern +1
We present a systematic study of gas accretion and angular momentum in the circumgalactic medium (CGM) using high-resolution FIRE cosmological simulations. Our analysis includes ha…
It's More Complicated Than You Think: A Forward Model to Infer the Recent Star Formation History, Bursty or Not, of Galaxy Populations
Emilie Burnham, Bingjie Wang, Joel Leja +14
Observations of the early Universe (z > 4) with the James Webb Space Telescope reveal galaxy populations with a wide range of intrinsic luminosities and colors. Bursty star formati…
Little Red Dots on FIRE: The Ability of Bursty Galaxies to Host an Abundant Population of High-Redshift AGN
Andrew Marszewski, Claude-André Faucher-Giguère, Guochao Sun +5
The James Webb Space Telescope has unveiled an abundant population of potential active galactic nuclei (AGN) at high redshift () known as little red dots (LRDs), which a…
A Turbulent Framework for Star Formation in High-Redshift Galaxies
Guochao Sun, Claude-André Faucher-Giguère, Jonathan Stern
Observations of distant galaxies suggest that the physics of galaxy formation at high redshifts differs significantly from later times. In contrast to large, steady disk galaxies l…
Explaining the Weak Evolution of the High-Redshift Mass-Metallicity Relation with Galaxy Burst Cycles
Andrew Marszewski, Claude-André Faucher-Giguère, Robert Feldmann +1
Recent observations suggest a nearly constant gas-phase mass-metallicity relation (MZR) at , in agreement with many theoretical predictions. This lack of evolution con…
Turbulence-dominated CGM: the origin of UV absorbers with equivalent widths of Å
Aharon Kakoly, Jonathan Stern, Claude-André Faucher-Giguère +4
Theoretical arguments and observations suggest that in massive halos (), the circumgalactic medium (CGM) is dominated by a 'hot' phase with gas temperature near…
The physical origin of positive metallicity radial gradients in high-redshift galaxies: insights from the FIRE-2 cosmological hydrodynamic simulations
Xunda Sun, Xin Wang, Xiangcheng Ma +11
Using the FIRE-2 cosmological zoom-in simulations, we investigate the temporal evolution of gas-phase metallicity radial gradients of Milky Way-mass progenitors in the redshift ran…
The High-Redshift Gas-Phase Mass-Metallicity Relation in FIRE-2
Andrew Marszewski, Guochao Sun, Claude-André Faucher-Giguère +2
The unprecedented infrared spectroscopic capabilities of JWST have provided high-quality interstellar medium (ISM) metallicity measurements and enabled characterization of the gas-…
The THESAN project: galaxy sizes during the epoch of reionization
Xuejian Shen, Mark Vogelsberger, Josh Borrow +12
We investigate galaxy sizes at redshift with the cosmological radiation-magneto-hydrodynamic simulation suite THESAN(-HR). These simulations simultaneously capture the…
Testing the near-far connection with FIRE simulations: inferring the stellar mass function of the proto-Local Group at z > 6 using the fossil record of present-day galaxies
Pratik J. Gandhi, Andrew Wetzel, Michael Boylan-Kolchin +6
The shape of the low-mass (faint) end of the galaxy stellar mass function (SMF) or ultraviolet luminosity function (UVLF) at z > 6 is an open question for understanding which galax…