Planets Across Space and Time (PAST). II: Catalog and Analyses of the LAMOST-Gaia-Kepler Stellar Kinematic Properties
| Autor: | Weikai Zong, Jia-Yi Yang, H. F. Wang, Yang Huang, A-Li Luo, Mao-Sheng Xiang, Subo Dong, Zheng Zheng, Ji-Lin Zhou, Chao Liu, Jinghua Zhang, Ji-Wei Xie, Di-Chang Chen |
|---|---|
| Přispěvatelé: | Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Stellar kinematics
010504 meteorology & atmospheric sciences FOS: Physical sciences Context (language use) Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Planet 0103 physical sciences Thick disk Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics ComputingMilieux_MISCELLANEOUS Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Physics Earth and Planetary Astrophysics (astro-ph.EP) [PHYS]Physics [physics] Astrophysics::Instrumentation and Methods for Astrophysics Astronomy Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Exoplanet Stars Thin disk Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Astrophysics::Earth and Planetary Astrophysics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | The Astronomical Journal The Astronomical Journal, American Astronomical Society, 2021, 162 (3), pp.100. ⟨10.3847/1538-3881/ac0f08⟩ |
| ISSN: | 0004-6256 1538-3881 |
| DOI: | 10.3847/1538-3881/ac0f08⟩ |
| Popis: | The Kepler telescope has discovered over 4,000 planets (candidates) by searching ? 200,000 stars over a wide range of distance (order of kpc) in our Galaxy. Characterizing the kinematic properties (e.g., Galactic component membership and kinematic age) of these Kepler targets (including the planet (candidate) hosts) is the first step towards studying Kepler planets in the Galactic context, which will reveal fresh insights into planet formation and evolution. In this paper, the second part of the Planets Across the Space and Time (PAST) series, by combining the data from LAMOST and Gaia and then applying the revised kinematic methods from PAST I, we present a catalog of kinematic properties(i.e., Galactic positions, velocities, and the relative membership probabilities among the thin disk, thick disk, Hercules stream, and the halo) as well as other basic stellar parameters for 35,835 Kepler stars. Further analyses of the LAMOST-Gaia-Kepler catalog demonstrate that our derived kinematic age reveals the expected stellar activity-age trend. Furthermore, we find that the fraction of thin(thick) disk stars increases (decreases) with the transiting planet multiplicity (Np = 0, 1, 2 and 3+) and the kinematic age decreases with Np, which could be a consequence of the dynamical evolution of planetary architecture with age. The LAMOST-Gaia-Kepler catalog will be useful for future studies on the correlations between the exoplanet distributions and the stellar Galactic environments as well as ages. Accepted for publication in Astronomical Journal, 19 pages, 9 figures, 5 tables. The full data of the LAMOST-Gaia-Kepler kinematic catalog (Table 3) will be published with the journal. If you need to use the data, please contact us via the email (jwxie@nju.edu.cn, dg1826003@smail.nju.edu.cn) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|