caiihkemissiondistributionof120000fgandkstarsinlamostdr1

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	caiihkemissiondistributionof120000fgandkstarsinlamostdr1
	Zhao Jingkun 1; Oswalt Terry D 2; Chen Yuqin 1; Shi Jianrong 1; Tan Kefeng 1; Fang Xiangsong 1; Zhao Gang 1; Yang Ming 1; Zhang Yong 3; Hou Yonghui 3
刊名	researchinastronomyandastrophysics
	2015
卷号	15 期号:8 页码:1282
ISSN号	1674-4527
英文摘要	We present chromospheric activity index SHK measurements for 119 995 F, G and K stars with high signal-to-noise ratio (S/N > 80) spectra, extracted from LAMOST DR1 in SDSS g band. The index δS for each of these stars is calculated by the difference between its SHK value and the baseline determined from very inactive stars. The effect of metallicity on measurement of δS varies with stellar T_(eff). No evident Vaughan-Preston gap appears in our sample. The relation between δS and vertical distance from the Galactic plane is determined for stars with T_(eff) 5500K, similar δS levels appear in both young and old cluster stars, which supports Pace’s suggestion that caution should be exercised when deriving the age of a single star by using its chromospheric activity. Finally, we investigate the relation between δS and the kinematics of our sample.
语种	英语
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/48262]
专题	中国科学院国家天文台
作者单位	1.中国科学院国家天文台 2.Embry-Riddle Aeronautical University 3.中国科学院国家天文台南京天文光学技术研究所
推荐引用方式 GB/T 7714	Zhao Jingkun,Oswalt Terry D,Chen Yuqin,et al. caiihkemissiondistributionof120000fgandkstarsinlamostdr1[J]. researchinastronomyandastrophysics,2015,15(8):1282.
APA	Zhao Jingkun.,Oswalt Terry D.,Chen Yuqin.,Shi Jianrong.,Tan Kefeng.,...&Wang Yuefei.(2015).caiihkemissiondistributionof120000fgandkstarsinlamostdr1.researchinastronomyandastrophysics,15(8),1282.
MLA	Zhao Jingkun,et al."caiihkemissiondistributionof120000fgandkstarsinlamostdr1".researchinastronomyandastrophysics 15.8(2015):1282.