564 citations · 7.4k across the 115 of their papers we have counts for
7 papers · 2 filters
[/Fe] Abundances of Four Outer M 31 Halo Stars
Luis C. Vargas, Karoline M. Gilbert, Marla C. Geha +3
We present alpha element to iron abundance ratios, [/Fe], for four stars in the outer stellar halo of the Andromeda Galaxy (M 31). The stars were identified as high-likelihood f…
The Supernova Progenitor Mass Distributions of M31 and M33: Further Evidence for an Upper Mass Limit
Zachary G. Jennings, Benjamin F. Williams, Jeremiah W. Murphy +5
Using Hubble Space Telescope (HST) photometry to measure star formation histories, we age-date the stellar populations surrounding supernova remnants (SNRs) in M31 and M33. We then…
Global Properties of M31's Stellar Halo from the SPLASH Survey: II. Metallicity Profile
Karoline M. Gilbert, Jason S. Kalirai, Puragra Guhathakurta +9
We present the metallicity distribution of red giant branch (RGB) stars in M31's stellar halo, derived from photometric metallicity estimates for over 1500 spectroscopically confir…
The Panchromatic Hubble Andromeda Treasury X. Ultraviolet to Infrared Photometry of 117 Million Equidistant Stars
Benjamin F. Williams, Dustin Lang, Julianne J. Dalcanton +16
We have measured stellar photometry with the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) in near ultraviolet (F275W, F336W), optic…
TriAnd and its Siblings: Satellites of Satellites in the Milky Way Halo
A. J. Deason, V. Belokurov, K. M. Hamren +7
We explore the Triangulum-Andromeda (TriAnd) overdensity in the SPLASH (Spectroscopic and Photometric Landscape of Andromeda's Stellar Halo) and SEGUE (the Sloan Extension for Gala…
The Star Formation Histories of Local Group Dwarf Galaxies II. Searching For Signatures of Reionization
Daniel R. Weisz, Andrew E. Dolphin, Evan D. Skillman +4
We search for signatures of reionization in the star formation histories (SFHs) of 38 Local Group dwarf galaxies (10 M 10 M). The SFHs are deriv…
The Star Formation Histories of Local Group Dwarf Galaxies I. Hubble Space Telescope / Wide Field Planetary Camera 2 Observations
Daniel R. Weisz, Andrew E. Dolphin, Evan D. Skillman +4
We present uniformly measured star formation histories (SFHs) of 40 Local Group dwarf galaxies based on color-magnitude diagram (CMD) analysis from archival Hubble Space Telescope…