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Accurate, Precise, and Physically Self-consistent Ages and Metallicities for 400,000 Solar Neighborhood Subgiant Branch Stars
David M. Nataf, Kevin C. Schlaufman, Henrique Reggiani +1
Age is the most difficult fundamental stellar parameter to infer for isolated stars. While isochrone-based ages are in general imprecise for both main sequence dwarfs and red giant…
The Similarity of Abundance Ratio Trends and Nucleosynthetic Patterns in the Milky Way Disk and Bulge
Emily Griffith, David H. Weinberg, Jennifer A. Johnson +9
We compare abundance ratio trends in a sample of Milky Way bulge stars ( kpc) from the Apache Point Observatory Galactic Evolution Experiment (APOGEE)…
On the Color-Metallicity Relation of the Red Clump and the Reddening Toward the Magellanic Clouds
David M. Nataf, Santi Cassisi, Luca Casagrande +2
The zero point of the reddening toward the Large Magellanic Cloud (LMC) has been the subject of some dispute. Its uncertainty propagates as a systematic error for methods which mea…
The Predicted Properties of Helium-Enriched Globular Cluster Progenitors at High Redshift
David M. Nataf, Shunsaku Horiuchi, Guglielmo Costa +5
Globular cluster progenitors may have been detected by \textit{HST}, and are predicted to be observable with \textit{JWST} and ground-based extremely-large telescopes with adaptive…
The Bulge Radial Velocity Assay for RR Lyrae stars (BRAVA-RR) DR2: a Bimodal Bulge?
Andrea Kunder, Angeles Perez-Villegas, R. Michael Rich +11
Radial velocities of 2768 fundamental mode RR Lyrae stars (RRLs) toward the Southern Galactic bulge are presented, spanning the southern bulge from -8 < l < +8 and -3 < b <-6. Dist…
Homogeneous Analysis of Globular Clusters from the APOGEE Survey with the BACCHUS Code. II. The Southern Clusters and Overview
Szabolcs Mészáros, Thomas Masseron, D. A. García-Hernández +33
We investigate the Fe, C, N, O, Mg, Al, Si, K, Ca, Ce and Nd abundances of 2283 red giant stars in 31 globular clusters from high-resolution spectra observed in both the northern a…