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Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy
Christopher Sneden, Melike Afsar, Zeynep Bozkurt +15
We have used the Habitable Zone Planet Finder (HPF) to gather high resolution, high signal-to-noise near-infrared spectra of 13 field red horizontal-branch (RHB) stars, one open-cl…
The COMBS Survey -- II. Distinguishing the Metal-Poor Bulge from the Halo Interlopers
Madeline Lucey, Keith Hawkins, Melissa Ness +9
The metal-poor stars in the bulge are important relics of the Milky Way's formation history, as simulations predict that they are some of the oldest stars in the Galaxy. In order t…
The Chemical Nature of the Young 120-Myr-old Nearby Pisces-Eridanus Stellar Stream Flowing through the Galactic Disk
Keith Hawkins, Madeline Lucey, Jason Curtis
Recently, a new cylindrical-shaped stream of stars up to 700 pc long was discovered hiding in the Galactic disk using kinematic data enabled by the Gaia mission. This stream of sta…
From the Inner to Outer Milky Way: A Photometric Sample of 2.6 Million Red Clump Stars
Madeline Lucey, Yuan-Sen Ting, Nesar S. Ramachandra +1
Large pristine samples of red clump stars are highly sought after given that they are standard candles and give precise distances even at large distances. However, it is difficult…