794 citations · 10k across the 110 of their papers we have counts for
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Elemental Abundances in M31: The Kinematics and Chemical Evolution of Dwarf Spheroidal Satellite Galaxies
Evan N. Kirby, Karoline M. Gilbert, Ivanna Escala +4
We present deep spectroscopy from Keck/DEIMOS of Andromeda I, III, V, VII, and X, all of which are dwarf spheroidal satellites of M31. The sample includes 256 spectroscopic members…
Evolution of the Stellar Mass-Metallicity Relation. II. Constraints on Galactic Outflows from the Mg Abundances of Quiescent Galaxies
Nicha Leethochawalit, Evan N. Kirby, Richard S. Ellis +2
We present the stellar mass-[Fe/H] and mass-[Mg/H] relation of quiescent galaxies in two galaxy clusters at and . We derive the age, [Fe/H], and [Mg/Fe] for…
Tentative Detection of the Circumgalactic Medium of the Isolated Low-Mass Dwarf Galaxy WLM
Y. Zheng, M. E. Putman, A. Emerick +7
We report a tentative detection of the circumgalactic medium (CGM) of WLM, an isolated, low-mass (log), dwarf irregular galaxy in the Local Group (LG). We an…
Elemental Abundances in M31: A Comparative Analysis of Iron and Alpha Element Abundances in the Outer Disk, Giant Stellar Stream, and Inner Halo of M31
Ivanna Escala, Karoline M. Gilbert, Evan N. Kirby +3
We measured [Fe/H] and [/Fe] using spectral synthesis of low-resolution stellar spectroscopy for 70 individual red giant branch stars across four fields spanning the outer disk,…
Elemental Abundances in M31: First Alpha and Iron Abundance Measurements in M31's Giant Stellar Stream
Karoline M. Gilbert, Evan N. Kirby, Ivanna Escala +3
We present the first measurements of [Fe/H] and [/Fe] abundances, obtained using spectral synthesis modeling, for red giant branch stars in M31's giant stellar stream. The spect…
Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies
Evan N. Kirby, Justin L. Xie, Rachel Guo +6
There is no consensus on the progenitors of Type Ia supernovae (SNe Ia) despite their importance for cosmology and chemical evolution. We address this question by using our previou…
Catalog of Chromium, Cobalt, and Nickel Abundances in Globular Clusters and Dwarf Galaxies
Evan N. Kirby, Justin L. Xie, Rachel Guo +2
We present measurements of the abundances of chromium, cobalt, and nickel in 4113 red giants, including 2277 stars in globular clusters, 1820 stars in the Milky Way's dwarf satelli…
Astro2020 Science White Paper: Local Dwarf Galaxy Archaeology
Alexander P. Ji, Rachel Beaton, Sukanya Chakrabarti +8
Nearby dwarf galaxies are local analogues of high-redshift and metal-poor stellar populations. Most of these systems ceased star formation long ago, but they retain signatures of t…
Understanding the circumgalactic medium is critical for understanding galaxy evolution
Molly S. Peeples, Peter Behroozi, Rongmon Bordoloi +69
Galaxies evolve under the influence of gas flows between their interstellar medium and their surrounding gaseous halos known as the circumgalactic medium (CGM). The CGM is a major…
Dynamical Masses for a Complete Census of Local Dwarf Galaxies
Joshua D. Simon, Keith Bechtol, Alex Drlica-Wagner +9
The 2020s are poised to continue the past two decades of significant advances based on observations of dwarf galaxies in the nearby universe. Upcoming wide-field photometric survey…