BRIGHT 22 mu m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG

	BRIGHT 22 mu m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG
	Wu, Chao-Jian1,2,3 ; Wu, Hong1,3 ; Lam, Man-I 1,3; Yang, Ming1,3 ; Wen, Xiao-Qing 3; Li, Shuo4 ; Zhang, Tong-Jie 2; Gao, Liang1
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2013-10-01
卷号	208 期号:2
关键词	infrared: stars planetary systems protoplanetary disks stars: formation
英文摘要	In this paper, we present a catalog that includes 141 bright candidates (<= 10.27 mag, V band) showing an excess of infrared (IR) at 22 mu m. Of these 141 candidates, 38 stars are known IR-excess stars or disks, 23 stars are double or multiple stars, and 4 are Be stars while the remaining more than 70 stars are identified as 22 mu m excess candidates in our work. The criterion for selecting candidates is K-s-[22](mu m). All these candidates are selected from the Wide-field Infrared Survey Explorer all-sky data cross-correlated with the Hipparcos main catalog and the likelihood-ratio technique is employed. Considering the effect of background, we introduce the IRAS 100 mu m level to exclude the high background. We also estimate the coincidence probability of these sources. In addition, we present the optical to mid-IR spectral energy distributions and optical images for all the candidates, and give the observed optical spectra of six stars with the National Astronomical Observatories, Chinese Academy of Sciences' 2.16 m telescope. To measure for the amount of dust around each star, the fractional luminosity is also provided. We also test whether our method of selecting IR-excess stars can be used to search for extra-solar planets; we cross-match our catalog with known IR-excess stars with planets but found no matches. Finally, we give the fraction of stars showing excess IR for different spectral types of main-sequence stars.
收录类别	SCI
语种	英语
WOS记录号	WOS:000325276600016
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6034]
专题	国家天文台_光学天文研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 4.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chao-Jian,Wu, Hong,Lam, Man-I,et al. BRIGHT 22 mu m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2013,208(2).
APA	Wu, Chao-Jian.,Wu, Hong.,Lam, Man-I.,Yang, Ming.,Wen, Xiao-Qing.,...&Gao, Liang.(2013).BRIGHT 22 mu m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,208(2).
MLA	Wu, Chao-Jian,et al."BRIGHT 22 mu m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 208.2(2013).