The recently discovered phosphorus-rich stars pose a challenge to stellar evolution and nucleosynthesis theory, as none of the existing models can explain their...
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PublicationHeavy-element Abundances in P-rich Stars: A New Site for the s-process?
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PublicationMultiple Populations in Low-mass Globular Clusters: Palomar 13
Since the discovery of chemically peculiar stars in globular clusters in the last century, the study of multiple populations has become increasingly important...
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PublicationOverview of the DESI Milky Way Survey
We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak...
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PublicationPreliminary Target Selection for the DESI Milky Way Survey (MWS)
The DESI Milky Way Survey (MWS) will observe ≥8 million stars between 16 < r < 19 mag, supplemented by observations of brighter targets under poor observing...
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PublicationThe APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2...
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PublicationThe Similarity of Abundance Ratio Trends and Nucleosynthetic Patterns in the Milky Way Disk and Bulge
We compare abundance ratio trends in a sample of ∼11,000 Milky Way bulge stars (R GC < 3 kpc) from the Apache Point Observatory Galactic Evolution Experiment...