454 citations · 7.2k across the 161 of their papers we have counts for
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The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper
SDSS Collaboration, Mojgan Aghakhanloo, David Aguilar +273
This paper presents the twentieth data release (DR20) from the Sloan Digital Sky Survey, the third data release of its fifth generation (SDSS-V). SDSS-V is a panoptic spectroscopy…
A Quality Framework for Testing Gravity with Wide Binaries: No Evidence for MOND
Stephen A. Cookson, Indranil Banik, Kareem El-Badry +4
Wide binaries (WBs) offer a unique opportunity to test gravity in the low-acceleration regime, where modifications such as Milgromian dynamics (MOND) predict measurable deviations…
Active galactic nuclei do not exhibit strictly sinusoidal brightness variations
Kareem El-Badry, David W. Hogg, Hans-Walter Rix
Periodic variability in active galactic nuclei (AGN) light curves has been proposed as a signature of close supermassive black hole (SMBH) binaries. Recently, 181 candidate SMBH bi…
The Nineteenth Data Release of the Sloan Digital Sky Survey
SDSS Collaboration, Gautham Adamane Pallathadka, Mojgan Aghakhanloo +210
Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial…
Realistic predictions for Gaia black hole discoveries: comparison of isolated binary and dynamical formation models
Pranav Nagarajan, Kareem El-Badry, Chirag Chawla +6
Astrometry from Gaia has enabled discovery of three dormant black holes (BHs) in au-scale binaries. Numerous models have been proposed to explain their formation, including several…
Mixed origins: strong natal kicks for some black holes and none for others
Pranav Nagarajan, Kareem El-Badry
Using stellar kinematic data from Gaia DR3, we revisit constraints on black hole (BH) natal kicks from observed accreting and detached BH binaries. We compare the space velocities…
What Causes The Formation of Disks and End of Bursty Star Formation?
Philip F. Hopkins, Alexander B. Gurvich, Xuejian Shen +17
As they grow, galaxies can transition from irregular/spheroidal with 'bursty' star formation histories (SFHs), to disky with smooth SFHs. But even in simulations, the direct physic…
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…
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…
Hot-mode accretion and the physics of thin-disk galaxy formation
Zachary Hafen, Jonathan Stern, James Bullock +16
We use FIRE simulations to study disk formation in z~0, Milky Way-mass galaxies, and conclude that a key ingredient for the formation of thin stellar disks is the ability for accre…
Science with the Ultraviolet Explorer (UVEX)
S. R. Kulkarni, Fiona A. Harrison, Brian W. Grefenstette +53
UVEX is a proposed medium class Explorer mission designed to provide crucial missing capabilities that will address objectives central to a broad range of modern astrophysics. The…
RR Lyrae-based Distances for 39 Nearby Dwarf Galaxies Calibrated to Gaia eDR3
Pranav Nagarajan, Daniel R. Weisz, Kareem El-Badry
We provide uniform RR Lyrae-based distances to 39 dwarf galaxies in and around the Local Group. We determine distances based on a Bayesian hierarchical model that uses periods and…
Wide binaries from the H3 survey: the thick disk and halo have similar wide binary fractions
Hsiang-Chih Hwang, Yuan-Sen Ting, Charlie Conroy +8
Due to the different environments in the Milky Way's disk and halo, comparing wide binaries in the disk and halo is key to understanding wide binary formation and evolution. By usi…
Predictions for Complex Distributions of Stellar Elemental Abundances in Low-Mass Galaxies
Preet B. Patel, Sarah R. Loebman, Andrew Wetzel +3
We investigate stellar elemental abundance patterns at z = 0 in 8 low-mass (M_* = 10^6 - 10^9 M_sun) galaxies in the Feedback in Realistic Environments (FIRE-2) cosmological simula…
The In-situ Origins of Dwarf Stellar Outskirts in FIRE-2
Erin Kado-Fong, Robyn E. Sanderson, Jenny E. Greene +11
Extended, old, and round stellar halos appear to be ubiquitous around high-mass dwarf galaxies () in the observed universe. However, it is unlike…
Testing the Relationship Between Bursty Star Formation and Size Fluctuations of Local Dwarf Galaxies
Najmeh Emami, Brian Siana, Kareem El-Badry +7
Stellar feedback in dwarf galaxies plays a critical role in regulating star formation via galaxy-scale winds. Recent hydrodynamical zoom simulations of dwarf galaxies predict that…
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…
Neutral CGM as damped Lyα absorbers at high redshift
Jonathan Stern, Amiel Sternberg, Claude-André Faucher-Giguère +8
Recent searches for the hosts of high-redshift () damped Ly absorbers (DLAs) have detected bright galaxies at distances of tens of kpc from the DLA. Using the FIRE-2 c…
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…
Probing the CGM of Low-redshift Dwarf Galaxies Using FIRE Simulations
Fei Li, Mubdi Rahman, Norman Murray +7
Observations of UV metal absorption lines have provided insight into the structure and composition of the circumgalactic medium (CGM) around galaxies. We compare these observations…
A Relationship Between Stellar Metallicity Gradients and Galaxy Age in Dwarf Galaxies
Francisco J. Mercado, James S. Bullock, Michael Boylan-Kolchin +7
We explore the origin of stellar metallicity gradients in simulated and observed dwarf galaxies. We use FIRE-2 cosmological baryonic zoom-in simulations of 26 isolated galaxies as…
The time-scales probed by star formation rate indicators for realistic, bursty star formation histories from the FIRE simulations
José A. Flores Velázquez, Alexander B. Gurvich, Claude-André Faucher-Giguère +10
Understanding the rate at which stars form is central to studies of galaxy formation. Observationally, the star formation rates (SFRs) of galaxies are measured using the luminosity…
Spatial and Kinematic Clustering of Stars in the Galactic Disk
Harshil Kamdar, Charlie Conroy, Yuan-Sen Ting +1
The Galactic disk is expected to be spatially, kinematically, and chemically clustered on many scales due to both star formation and non-axisymmetries in the Galactic potential. In…
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…