NAOC Open IR
planethoststarsmassageandkinematics
Chen Yuqin; Zhao Gang
2002
Source Publicationchinesejournalofastronomyandastrophysics
ISSN1009-9271
Volume2Issue:2Pages:151
AbstractWe determine the mass, age and kinematics of 51 extra-solar planet host stars. The results are then used to search for signs of connection of the data with metallicity and to investigate the population nature. We find that the increase in mean metallicity with stellar mass is similar to that in normal field stars, so it seems unsuitable to use this relation as a constraint on the theory of planet formation. The age and kinematic distributions seem to favour the metallicity of extra-solar planet host stars being initial. Although the kinematic data of these stars indicate their origin from two populations-the thin and the thick disks, kinematics may not help in the maintenance of the planet around the host. Stars with planets, brown dwarfs or stellar companions are sorted into three groups and re-investigated separately for their formation mechanism. The main results indicate that stars with M2 -0.1 and a wide period range, but there are no other differences. Thus, there does not seem to be any physically distinguishable characteristics among the three star groups.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/53323
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chen Yuqin,Zhao Gang. planethoststarsmassageandkinematics[J]. chinesejournalofastronomyandastrophysics,2002,2(2):151.
APA Chen Yuqin,&Zhao Gang.(2002).planethoststarsmassageandkinematics.chinesejournalofastronomyandastrophysics,2(2),151.
MLA Chen Yuqin,et al."planethoststarsmassageandkinematics".chinesejournalofastronomyandastrophysics 2.2(2002):151.
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