Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy
Christopher Sneden,
Melike Afsar,
Zeynep Bozkurt
et al.
Abstract:We have used the Habitable Zone Planet Finder (HPF) to gather high resolution, high signal-tonoise near-infrared spectra of 13 field red horizontal-branch (RHB) stars, one open-cluster giant, and one very metal-poor halo red giant. The HPF spectra cover the 0.81−1.28 µm wavelength range of the zyJ bands, filling in the gap between the optical (0.4−1.0 µm) and infrared (1.5−2.4 µm) spectra already available for the program stars. We derive abundances of 17 species from LTE-based computations involving equivalen… Show more
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