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Title:
Kinematics of metal-poor stars in the galaxy
Authors:
Beers, Timothy C.; Sommer-Larsen, Jesper
Affiliation:
AA(Michigan State University, East Lansing, MI, US), AB(Michigan State University, East Lansing, MI, US)
Publication:
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 96, no. 1, p. 175-221 (ApJS Homepage)
Publication Date:
01/1995
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Abundance, Astronomical Models, Kinematics, Metallicity, Milky Way Galaxy, Radial Velocity, Star Distribution, Stellar Spectrophotometry, Mass Spectroscopy, Maximum Likelihood Estimates
DOI:
10.1086/192117
Bibliographic Code:
1995ApJS...96..175B

Abstract

We discuss the kinematic properties of a sample of 1936 Galactic stars, selected without kinematic bias, and with abundances (Fe/H) is less than or equal to -0.6. The stars selected for this study all have measured radial velocities, and the majority have abundances determined from spectroscopic or narrow-/intermediate-band photometric techniques. In contrast to previous examinations of the kinematics of the metal-poor stars in the Galaxy, our sample contains large numbers of stars that are located at distances in excess of 1 kpc from the Galactic plane. Thus, a much clearer picture of the nature of the metal-deficient populations in the Galaxy can now be drawn.

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