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Deep SDSS optical spectroscopy of distant halo stars

Allende Prieto, Carlos; Fernandez-Alvar, E; Schlesinger, Katharine; Lee, Y S; Morrison, Heather; Schneider, Donald; Beers, Timothy C; Bizyaev, Dmitry; Ebelke, G; Malanushenko, Viktor; Oravetz, Daniel; Pan, K


Aims. We analyze a sample of tens of thousands of spectra of halo turnoff stars, obtained with the optical spectrographs of the Sloan Digital Sky Survey (SDSS), to characterize the stellar halo population "in situ" out to a distance of a few tens of kpc from the Sun. In this paper we describe the derivation of atmospheric parameters. We also derive the overall stellar metallicity distribution based on F-type stars observed as flux calibrators for the Baryonic Oscillations Spectroscopic Survey...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201424053


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