Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics
| Autor: | Julius Sperauskas, N. V. Kharchenko, Richard P. Boyle, Z. Aslan, S. Bartašiūtė, L. P. Ossipkov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
stars
Stellar kinematics Young stellar object Metallicity Astronomy QB1-991 Astrophysics Kinematics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics::Solar and Stellar Astrophysics Disc Astrophysics::Galaxy Astrophysics Physics abundances solar neighborhood Stellar collision Stellar atmosphere stellar populations Astronomy and Astrophysics Proper-motion stars Metal-poor stars Thick disk Galaxy Photometry Sample Field Solar neighborhood Stellar populations Space and Planetary Science kinematics Astrophysics::Earth and Planetary Astrophysics galaxy Distribution (differential geometry) |
| Zdroj: | Open Astronomy, Vol 12, Iss 4, Pp 539-546 (2003) Baltic astronomy, 2003, vol. 12, no. 4, p. 539-546 |
| ISSN: | 2543-6376 1392-0049 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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