Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics

Bartašiūtė S.; Aslan Z.; Boyle R. P.; Kharchenko N. V.; Ossipkov L. P.; Sperauskas J.

doi:10.1515/astro-2017-0078

Open Astronomy (Dec 2003)

Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics

Bartašiūtė S.,
Aslan Z.,
Boyle R. P.,
Kharchenko N. V.,
Ossipkov L. P.,
Sperauskas J.

Affiliations

Bartašiūtė S.: Astronomical Observatory of Vilnius University, Čiurlionio 29, Vilnius, LT-03100, Lithuania
Aslan Z.: Physics Department, Akdeniz University, 07058 Antalya, Turkey Turkey
Boyle R. P.: Vatican Observatory Research Group, Steward Observatory, University of Arizona, Tucson, Arizona 85721, United States of America
Kharchenko N. V.: Main Astronomical Observatory, NAS of Ukraine, 27 Zabolotnoho St., 03680 Kiev, Ukraine
Ossipkov L. P.: Department of Space Technologies and Applied Astrodynamics, St. Petersburg State University, Universitetskij pr. 28, St. Petersburg 198504, Russian Federation
Sperauskas J.: Astronomical Observatory of Vilnius University, Čiurlionio 29, Vilnius, LT-03100, Lithuania

DOI: https://doi.org/10.1515/astro-2017-0078
Journal volume & issue: Vol. 12, no. 4
pp. 539 – 546

Abstract

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Metallicities and distances have been determined from Vilnius photometry for an in situ sample of nearly 650 stars in eight proper-motion fields at high Galactic latitudes. For half of these stars, radial velocities have been measured with the CORAVEL spectrometer, which allowed us to derive spatial velocities and Galactic orbits. In this contribution we present a status report on our results for the stellar content of the Galactic disk, with emphasis given to specific aspects of distinguishing the thick-disk stars from the old thin-disk population.

Published in Open Astronomy

ISSN: 2543-6376 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Science: Astronomy
Website: https://www.degruyter.com/view/j/astro

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