Kinematics of metal-poor stars in the galaxy. II. Proper motions for a large nonkinematically selected sample

Timothy C. Beers, Masashi Chiba, Yuzuru Yoshii, Imants Platais, Robert B. Hanson, Burkhard Fuchs, Silvia Rossi

Research output: Contribution to journalArticlepeer-review

148 Citations (Scopus)

Abstract

We present a revised catalog of 2106 Galactic stars, selected without kinematic bias and with available radial velocities, distance estimates, and metal abundances in the range -4.0 ≤ [Fe/H] ≤ 0.0. This update of the 1995 Beers & Sommer-Larsen catalog includes newly derived homogeneous photometric distance estimates, revised radial velocities for a number of stars with recently obtained high-resolution spectra, and refined metallicities for stars originally identified in the HK objective-prism survey (which account for nearly half of the catalog) based on a recent recalibration. A subset of 1258 stars in this catalog have available proper motions based on measurements obtained with the Hipparcos astrometry satellite or taken from the updated Astrographic Catalogue (second epoch positions from either the Hubble Space Telescope Guide Star Catalog or the Tycho Catalogue), the Yale/San Juan Southern Proper Motion Catalog 2.0, and the Lick Northern Proper Motion Catalog. Our present catalog includes 388 RR Lyrae variables (182 of which are newly added), 38 variables of other types, and 1680 nonvariables, with distances in the range 0.1 to 40 kpc.

Original languageEnglish
Pages (from-to)2866-2881
Number of pages16
JournalAstronomical Journal
Volume119
Issue number6
DOIs
Publication statusPublished - 2000 Jun
Externally publishedYes

Keywords

  • Galaxy: abundances
  • Galaxy: halo
  • Galaxy: kinematics and dynamics
  • Stars: Population II
  • Surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'Kinematics of metal-poor stars in the galaxy. II. Proper motions for a large nonkinematically selected sample'. Together they form a unique fingerprint.

Cite this