| |  Online-Ressource |
|---|
| Verfasst von: | Aoki, Wako [VerfasserIn]  |
|---|
| | Li, Haining [VerfasserIn] |
|---|
| | Matsuno, Tadafumi [VerfasserIn] |
|---|
| | Xing, Qianfan [VerfasserIn] |
|---|
| | Chen, Yuqin [VerfasserIn] |
|---|
| | Christlieb, Norbert [VerfasserIn] |
|---|
| | Honda, Satoshi [VerfasserIn] |
|---|
| | Ishigaki, Miho N. [VerfasserIn] |
|---|
| | Shi, Jianrong [VerfasserIn] |
|---|
| | Suda, Takuma [VerfasserIn] |
|---|
| | Tominaga, Nozomu [VerfasserIn] |
|---|
| | Yan, Hong-Liang [VerfasserIn] |
|---|
| | Zhao, Jingkun [VerfasserIn] |
|---|
| | Zhao, Gang [VerfasserIn] |
|---|
| Titel: | Four-hundred very metal-poor stars studied with LAMOST and Subaru |
|---|
| Titelzusatz: | I. Survey design, follow-up program, and binary frequency |
|---|
| Verf.angabe: | Wako Aoki, Haining Li, Tadafumi Matsuno, Qianfan Xing, Yuqin Chen, Norbert Christlieb, Satoshi Honda, Miho N. Ishigaki, Jianrong Shi, Takuma Suda, Nozomu Tominaga, Hong-Liang Yan, Jingkun Zhao, and Gang Zhao |
|---|
| E-Jahr: | 2022 |
|---|
| Jahr: | 2022 June 1 |
|---|
| Umfang: | 11 S. |
|---|
| Fussnoten: | Gesehen am 08.07.2022 |
|---|
| Titel Quelle: | Enthalten in: The astrophysical journal / 1 |
|---|
| Ort Quelle: | London : Institute of Physics Publ., 1995 |
|---|
| Jahr Quelle: | 2022 |
|---|
| Band/Heft Quelle: | 931(2022), 2, Artikel-ID 146, Seite 1-11 |
|---|
| ISSN Quelle: | 1538-4357 |
|---|
| Abstract: | The chemical abundances of very metal-poor stars provide important constraints on the nucleosynthesis of the first generation of stars and early chemical evolution of the Galaxy. We have obtained high-resolution spectra with the Subaru Telescope for candidates of very metal-poor stars selected with a large survey of Galactic stars carried out with LAMOST. In this series of papers, we report on the elemental abundances of about 400 very metal-poor stars and discuss the kinematics of the sample obtained by combining the radial velocities measured in this study and recent astrometry obtained with Gaia. This paper provides an overview of our survey and follow-up program, and reports radial velocities for the whole sample. We identify seven double-lined spectroscopic binaries from our high-resolution spectra, for which radial velocities of the components are reported. We discuss the frequency of such relatively short-period binaries at very low metallicity. |
|---|
| DOI: | doi:10.3847/1538-4357/ac6515 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.3847/1538-4357/ac6515 |
|---|
| | DOI: https://doi.org/10.3847/1538-4357/ac6515 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1809655544 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Four-hundred very metal-poor stars studied with LAMOST and Subaru / Aoki, Wako [VerfasserIn]; 2022 June 1 (Online-Ressource)
