activity
20162026
most citedA million binaries from Gaia eDR3: sample selection and validation of Gaia parallax uncertainties

454 citations · 2.3k across the 103 of their papers we have counts for

collaborators
Showing 2020Show all

12 papers · 1 filter

astro-ph.GA2020★ 17 cited

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…

astro-ph.GA2020

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…

astro-ph.SR2020

Data-driven spectroscopic estimates of absolute magnitude, distance and binarity -- method and catalog of 16,002 O- and B-type stars from LAMOST

Mao-Sheng Xiang, Hans-Walter Rix, Yuan-Sen Ting +4

We present a data-driven method to estimate absolute magnitudes for O- and B-type stars from the LAMOST spectra, which we combine with {\it Gaia} parallaxes to infer distance and b…

astro-ph.GA2020

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…

astro-ph.GA2020

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…

astro-ph.GA2020

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…