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Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars
Chen,Di-Chang1,2; Xie,Ji-Wei1,2; Zhou,Ji-Lin1,2; Dong,Subo3; Liu,Chao4,5; Wang,Hai-Feng6; Xiang,Mao-Sheng7,8; Huang,Yang6; Luo,Ali7; Zheng,Zheng9
2021-03-01
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume909Issue:2
AbstractAbstract Over 4000 exoplanets have been identified and thousands of candidates are to be confirmed. The relations between the characteristics of these planetary systems and the kinematics, Galactic components, and ages of their host stars have yet to be well explored. To address these questions, we conduct a research project, dubbed Planets Across Space and Time (PAST). To do this, one of the key steps is to accurately characterize the planet host stars. In this paper, Paper I of the PAST series, we revisit the kinematic method for classification of Galactic components and extend the applicable range of velocity ellipsoid from ~100 pc to ~1500 pc from the Sun in order to cover most known planet hosts. Furthermore, we revisit the age–velocity dispersion relation (AVR), which allows us to derive kinematic ages with a typical uncertainty of 10–20% for an ensemble of stars. Applying the above revised methods, 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 2174 host stars of 2872 planets by combining data from Gaia, LAMOST, APOGEE, RAVE, and the NASA exoplanet archive. The revised kinematic method and AVR, as well as the stellar catalog of kinematic properties and ages, lay the foundation for future studies of exoplanets in space and time in the Galactic context.
KeywordExoplanets Exoplanet catalogs Stellar ages Stellar kinematics the Milky Way
DOI10.3847/1538-4357/abd5be
Language英语
WOS IDIOP:0004-637X-909-2-abd5be
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/59828
Collection中国科学院国家天文台
Corresponding AuthorXie,Ji-Wei
Affiliation1.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People’s Republic of China; jwxie@nju.edu.cn
2.Key Laboratory of Modern Astronomy and Astrophysics, Ministry of Education, Nanjing 210023, People’s Republic of China
3.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China
4.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China
5.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
6.South-Western Institute for Astronomy Research, Yunnan University, Kunming 650500, People’s Republic of China
7.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China
8.Max-Planck Institute for Astronomy, K?nigstuhl 17, D-69117 Heidelberg, Germany
9.Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
Recommended Citation
GB/T 7714
Chen,Di-Chang,Xie,Ji-Wei,Zhou,Ji-Lin,et al. Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars[J]. The Astrophysical Journal,2021,909(2).
APA Chen,Di-Chang.,Xie,Ji-Wei.,Zhou,Ji-Lin.,Dong,Subo.,Liu,Chao.,...&Zheng,Zheng.(2021).Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars.The Astrophysical Journal,909(2).
MLA Chen,Di-Chang,et al."Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars".The Astrophysical Journal 909.2(2021).
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