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The Prevalence of the -bimodality: First JWST -abundance Results in M31
David L. Nidever, Karoline Gilbert, Erik Tollerud +8
We present initial results from our JWST NIRSpec program to study the -abundances in the M31 disk. The Milky Way has two chemically-defined disks, the low- and high- disks…
On the Metallicities and Kinematics of the Circumgalactic Media of Damped Ly Systems at
Stephanie M. Urbano Stawinski, Kate H. R. Rubin, J. Xavier Prochaska +7
We use medium- and high-resolution spectroscopy of close pairs of quasars to analyze the circumgalactic medium (CGM) surrounding 32 damped Ly absorption systems (DLAs). The prim…
The Hubble Space Telescope Survey of M31 Satellite Galaxies II. The Star Formation Histories of Ultra-Faint Dwarf Galaxies
A. Savino, D. R. Weisz, E. D. Skillman +34
We present the lifetime star formation histories (SFHs) for six ultra-faint dwarf (UFD; , ) satellite galaxies of M31 based on…
HALO7D III: Chemical Abundances of Milky Way Halo Stars from Medium Resolution Spectra
Kevin A. McKinnon, Emily C. Cunningham, Constance M. Rockosi +4
The Halo Assembly in Lambda Cold Dark Matter: Observations in 7 Dimensions (HALO7D) survey measures the kinematics and chemical properties of stars in the Milky Way (MW) stellar ha…
The JWST Resolved Stellar Populations Early Release Science Program II. Survey Overview
Daniel R. Weisz, Kristen B. W. McQuinn, Alessandro Savino +39
We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Grou…
The Stellar Kinematics of Void Dwarf Galaxies Using KCWI
Mithi A. C. de los Reyes, Evan N. Kirby, Zhuyun Zhuang +3
Dwarf galaxies located in extremely under-dense cosmic voids are excellent test-beds for disentangling the effects of large-scale environment on galaxy formation and evolution. We…