199 citations · 1.6k across the 36 of their papers we have counts for
36 papers
MARVELously Dark: the density profile evolution of dwarf halos in velocity-dependent SIDM
Anna Engelhardt, Ferah Munshi, Annika H. G. Peter +6
Self-interacting dark matter (SIDM) with a sufficiently large cross section has been shown to naturally produce constant dark matter (DM) cores, as well as core-collapse, at the ce…
Dwarf diversity in CDM with baryons
Akaxia Cruz, Alyson Brooks, Mariangela Lisanti +7
Observed rotation curves of dwarf galaxies exhibit significant diversity at fixed halo mass, challenging galaxy formation within the Cold Dark Matter (CDM) model. Previous cosmolog…
The Seven Dwarfs illuminated. The impact of radiation on dwarf galaxies and their circumgalactic medium
Bernhard Baumschlager, Sijing Shen, James W. Wadsley +6
We present a high-resolution cosmological zoom-in simulation of a group of field dwarf galaxies which includes on-the-fly radiative transfer (RT) and is evolved to . Emission…
The Merger-Driven Formation of Classical Low Surface Brightness Galaxies in Romulus25
Anna C. Wright, Alyson M. Brooks, Michael Tremmel +3
We use the Romulus25 cosmological simulation volume to study a large sample of late-type gas-rich galaxies with low central surface brightnesses known as classical low surface brig…
Survivors and Zombies: The Quenching and Disruption of Satellites around Milky Way Analogs
Debosmita Pathak, Charlotte R. Christensen, Alyson M. Brooks +3
It is necessary to understand the full accretion history of the Milky Way in order to contextualize the properties of observed Milky Way satellite galaxies and the stellar halo. Th…
A MARVEL-ous study of how well galaxy shapes reflect Dark Matter halo shapes in Cold Dark Matter Simulations
Blake Keith, Ferah Munshi, Alyson M. Brooks +6
We present a 3D shape analysis of both dark matter (DM) and stellar matter (SM) in simulated dwarf galaxies to determine whether stellar shape traces DM shape. Using 80 central and…
Intermediate Mass Ratio Inspirals in Milky Way Galaxies
Jillian Bellovary, Yuantong Luo, Thomas Quinn +3
A consequence of a non-zero occupation fraction of massive black holes (MBHs) in dwarf galaxies is that these MBHs can become residents of larger galaxy halos via hierarchical merg…
Stellar Mass Calibrations for Local Low-Mass Galaxies
Mithi A. C. de los Reyes, Yasmeen Asali, Risa Wechsler +10
The stellar masses of galaxies are measured using integrated light via several methods -- however, few of these methods were designed for low-mass ($M_{\star}\lesssim10^{8}\rm{M_{\…
Testable predictions of outside-in age gradients in dwarf galaxies of all types
Claire L. Riggs, Alyson M. Brooks, Ferah Munshi +4
We use a sample of 73 simulated satellite and central dwarf galaxies spanning a stellar mass range of to investigate the origin of their stellar age gra…
Bursting with Feedback: The Relationship between Feedback Model and Bursty Star Formation Histories in Dwarf Galaxies
Bianca Azartash-Namin, Anna Engelhardt, Ferah Munshi +6
We use high-resolution cosmological simulations to compare the effect of bursty star formation histories on dwarf galaxy structure for two different subgrid supernovae (SNe) feedba…
Environment Matters: Predicted Differences in the Stellar Mass--Halo Mass Relation and History of Star Formation for Dwarf Galaxies
Charlotte R. Christensen, Alyson Brooks, Ferah Munshi +5
We are entering an era in which we will be able to detect and characterize hundreds of dwarf galaxies within the Local Volume. It is already known that a strong dichotomy exists in…
The Role of Mass and Environment on Satellite distributions around Milky Way analogs in the Romulus25 simulation
Jordan Van Nest, Ferah Munshi, Charlotte Christensen +3
We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25, a large-volume cosmological hydrodynamic simulation. Depending on the definition…
Can Cosmological Simulations Reproduce the Spectroscopically Confirmed Galaxies Seen at ?
B. W. Keller, F. Munshi, M. Trebitsch +1
Recent photometric detections of extreme redshift galaxies from the JWST have been shown to be in strong tension with existing simulation models for galaxy formation, and…
Report of the Topical Group on Cosmic Probes of Dark Matter for Snowmass 2021
Alex Drlica-Wagner, Chanda Prescod-Weinstein, Hai-Bo Yu +37
Cosmological and astrophysical observations currently provide the only robust, positive evidence for dark matter. Cosmic probes of dark matter, which seek to determine the fundamen…
The stellar metallicity gradients of Local Group dwarf galaxies
S. Taibi, G. Battaglia, R. Leaman +5
Through a homogeneous analysis of spectroscopic literature data of red giant stars, we determine the radial metallicity profiles of 30 dwarf galaxies in the Local Group. We explore…
Snowmass2021 Cosmic Frontier White Paper: Cosmological Simulations for Dark Matter Physics
Arka Banerjee, Kimberly K. Boddy, Francis-Yan Cyr-Racine +15
Over the past several decades, unexpected astronomical discoveries have been fueling a new wave of particle model building and are inspiring the next generation of ever-more-sophis…
What's in a name? Quantifying the interplay between the Definition, Orientation, and Shape of Ultra-diffuse Galaxies Using the Romulus Simulations
Jordan D. Van Nest, F. Munshi, A. C. Wright +4
We explore populations of ultra-diffuse galaxies (UDGs) in isolated, satellite, and cluster environments using the Romulus25 and RomulusC simulations, including how the populations…
The Intrinsic Shapes of Low Surface Brightness Galaxies: a Discriminant of LSBG Formation Mechanisms
Erin Kado-Fong, Mihai Petrescu, Majid Mohammad +8
We use the low surface brightness galaxy (LSBG) samples created from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP, 781 galaxies), the Dark Energy Survey (DES, 20977 gala…
The Origins of Off-Centre Massive Black Holes in Dwarf Galaxies
Jillian M. Bellovary, Sarra Hayoune, Katheryn Chafla +9
Massive black holes often exist within dwarf galaxies, and both simulations and observations have shown that a substantial fraction of these may be off-center with respect to their…
Quantifying scatter in galaxy formation at the lowest masses
Ferah Munshi, Alyson Brooks, Elaad Applebaum +3
We predict the stellar mass -- halo mass (SMHM) relationship for dwarf galaxies, using simulated galaxies with peak halo masses of M M down into th…
Ultra-faint dwarfs in a Milky Way context: Introducing the Mint Condition DC Justice League Simulations
Elaad Applebaum, Alyson M. Brooks, Charlotte R. Christensen +4
We present results from the "Mint" resolution DC Justice League suite of Milky Way-like zoom-in cosmological simulations, which extend our study of nearby galaxies down into the ul…
An Excess of Globular Clusters in UDGs Formed Through Tidal Heating
Timothy Carleton, Yicheng Guo, Ferah Munshi +2
To investigate the origin of elevated globular cluster abundances observed around Ultra-Diffuse Galaxies (UDGs), we simulate globular cluster populations hosted by UDGs formed thro…
Quenching timescales of dwarf satellites around Milky Way-mass hosts
Hollis B. Akins, Charlotte R. Christensen, Alyson M. Brooks +4
Observations of the low-mass satellites in the Local Group have shown high fractions of gas-poor, quiescent galaxies relative to isolated dwarfs, implying that the host halo enviro…
The Formation of Isolated Ultra-Diffuse Galaxies in Romulus25
Anna C. Wright, Michael Tremmel, Alyson M. Brooks +4
We use the \textsc{Romulus25} cosmological simulation volume to identify the largest-ever simulated sample of {\it field} ultra-diffuse galaxies (UDGs). At , we find that isol…