137 citations · 764 across the 25 of their papers we have counts for
25 papers
The Milky Way's Missing In-Situ Halo
Madeline Lucey, Robyn E. Sanderson, Alexander H. Riley +3
The Milky Way's stellar halo preserves a record of its mass assembly history, encoding accretion events in its structural properties. Among the most prominent of these features is…
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…
Beyond Cloud-9: The case for discovering more HI-rich failed halos
Jorge Moreno, Coral Wheeler, Francisco J. Mercado +8
HI-rich starless halos, should they exist, hold great promise for elucidating dark matter halo structure. Yet realizing this potential demands reliable theoretical predictions for…
Relatively Fast and Reasonably Furious: Evidence for Increased Burstiness in Smaller Halos at Cosmic Dawn
Julian B. Muñoz, John Chisholm, Guochao Sun +7
We introduce an effective framework to model star-formation burstiness and use it to jointly fit galaxy UV luminosity functions (UVLFs), clustering, and H/UV ratios, providing t…
Igniting galaxy formation in the post-reionization universe
Jorge Moreno, Coral Wheeler, Francisco J. Mercado +9
It is widely believed that the ultraviolet background produced during the epoch of reionization conspires against the formation of low-mass galaxies. Indeed, this mechanism is ofte…
The quenched fraction of satellites around simulated Milky Way-mass galaxies
Francisco J. Mercado, Devontae C. Baxter, M. Katy Rodriguez Wimberly +7
We compare satellite quenched fractions across three cosmological simulation suites (FIREbox, the FIRE-2 zoom-ins, and IllustrisTNG50) and observational datasets from SAGA, ELVES,…
Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation
Andrew Wetzel, Jenna Samuel, Pratik J. Gandhi +34
We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available…
Central densities of dark matter halos in FIRE-2 simulations of low-mass galaxies with cold dark matter and self-interacting dark matter
Maria C. Straight, Michael Boylan-Kolchin, James S. Bullock +6
We investigate the central density structure of dark matter halos in cold dark matter (CDM) and self-interacting dark matter (SIDM) models using simulations that are part of the Fe…
Stellar Metallicities and Gradients in the Isolated, Quenched Low-Mass Galaxy Tucana
Sal Wanying Fu, Daniel R. Weisz, Else Starkenburg +10
We measure the metallicities of 374 red giant branch (RGB) stars in the isolated, quenched dwarf galaxy Tucana using Hubble Space Telescope (HST) narrow-band (F395N) Calcium H & K…
On the co-rotation of Milky Way satellites: LMC-mass satellites induce apparent motions in outer halo tracers
Nicolas Garavito-Camargo, Adrian M. Price-Whelan, Jenna Samuel +8
Understanding the physical mechanism behind the formation of a co-rotating thin plane of satellite galaxies, like the one observed around the Milky Way (MW), has been challenging.…
Hooks & Bends in the Radial Acceleration Relation: Discriminatory Tests for Dark Matter and MOND
Francisco J. Mercado, James S. Bullock, Jorge Moreno +5
The Radial Acceleration Relation (RAR) connects the total gravitational acceleration of a galaxy at a given radius, , with that accounted for by baryons at the same…
The dark side of FIRE: predicting the population of dark matter subhaloes around Milky Way-mass galaxies
Megan Barry, Andrew Wetzel, Sierra Chapman +3
A variety of observational campaigns seek to test dark-matter models by measuring dark-matter subhaloes at low masses. Despite their predicted lack of stars, these subhaloes may be…
A jolt to the system: ram pressure on low-mass galaxies in simulations of the Local Group
Jenna Samuel, Bhavya Pardasani, Andrew Wetzel +4
Low-mass galaxies are highly susceptible to environmental effects that can efficiently quench star formation. We explore the role of ram pressure in quenching low-mass galaxies ($M…
Orbital dynamics and histories of satellite galaxies around Milky Way-mass galaxies in the FIRE simulations
Isaiah B. Santistevan, Andrew Wetzel, Erik Tollerud +2
The orbits of satellite galaxies encode rich information about their histories. We investigate the orbital dynamics and histories of satellite galaxies around Milky Way (MW)-mass h…
Formation of proto-globular cluster candidates in cosmological simulations of dwarf galaxies at
Omid Sameie, Michael Boylan-Kolchin, Philip F. Hopkins +8
We perform cosmological hydrodynamical simulations to study the formation of proto-globular cluster candidates in progenitors of present-day dwarf galaxies $(M_{\rm vir} \approx 10…
The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies
Lizvette Villafaña, Peter R. Williams, Tommaso Treu +62
We have modeled the velocity-resolved reverberation response of the H\b{eta} broad emission line in nine Seyfert 1 galaxies from the Lick Active Galactic Nucleus (AGN) Monitioring…
Extinguishing the FIRE: environmental quenching of satellite galaxies around Milky Way-mass hosts in simulations
Jenna Samuel, Andrew Wetzel, Isaiah Santistevan +5
The star formation and gas content of satellite galaxies around the Milky Way (MW) and Andromeda (M31) are depleted relative to more isolated galaxies in the Local Group (LG) at fi…
Public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation
Andrew Wetzel, Christopher C. Hayward, Robyn E. Sanderson +23
We describe a public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation, available at http://flathub.flatironinstitute.org/fire, from the Feedback In R…
The Lick AGN Monitoring Project 2016: Velocity-Resolved Hβ Lags in Luminous Seyfert Galaxies
Vivian U, Aaron J. Barth, H. Alexander Vogler +61
We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast double spectrograph on the 3-m Shane telescope at Lick Observatory from April 2016 to M…
Relating the Diverse Merger Histories and Satellite Populations of Nearby Galaxies
Adam Smercina, Eric F. Bell, Jenna Samuel +1
We investigate whether the considerable diversity in the satellite populations of nearby Milky Way (MW)-mass galaxies is connected with the diversity in their host's merger histori…
The effects of LMC-mass environments on their dwarf satellite galaxies in the FIRE simulations
Ethan D. Jahn, Laura V. Sales, Andrew Wetzel +4
Characterizing the predicted environments of dwarf galaxies like the Large Magellanic Cloud (LMC) is becoming increasingly important as next generation surveys push sensitivity lim…
The origin of metal-poor stars on prograde disk orbits in FIRE simulations of Milky Way-mass galaxies
Isaiah B. Santistevan, Andrew Wetzel, Robyn E. Sanderson +3
In hierarchical structure formation, metal-poor stars in and around the Milky Way (MW) originate primarily from mergers of lower-mass galaxies. A common expectation is therefore th…
Planes of satellites around Milky Way/M31-mass galaxies in the FIRE simulations and comparisons with the Local Group
Jenna Samuel, Andrew Wetzel, Sierra Chapman +5
We examine the prevalence, longevity, and causes of planes of satellite dwarf galaxies, as observed in the Local Group. We use 14 Milky Way/Andromeda-(MW/M31) mass host galaxies fr…
A profile in FIRE: resolving the radial distributions of satellite galaxies in the Local Group with simulations
Jenna Samuel, Andrew Wetzel, Erik Tollerud +9
While many tensions between Local Group (LG) satellite galaxies and LCDM cosmology have been alleviated through recent cosmological simulations, the spatial distribution of satelli…