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Decijansky radio flux BL Lacertae objects
Tan YP(覃一平); Xie GZ(谢光中); Qin YP(覃一平)
Source PublicationASTROPHYSICAL JOURNAL
1997-09-20
Volume487Issue:1Pages:L41-L44
DOI10.1086/310860
Contribution Rank第1完成单位
Indexed BySCI
KeywordBl Lacertae Objects Galaxies Radio Continuum X-rays General Nuclei Galaxies Galaxies
AbstractBL Lac objects with radio flux in the range of [1, 10) decijanskys (dJy) are defined as observational class ''dJy.'' Because the radio fluxes of most radio-selected BL Lac objects (RBLs) are bigger than I Jy while the radio fluxes of most X-ray-selected BL Lac objects (XBLs) are less than 1 dJy, we investigate whether the dJy class forms a bridge connecting RBLs and XBLs on the alpha(ro)-alpha(ox) color-color diagram. We compose a dJy sample by collecting dJy class sources from radio and X-ray surveys as well as other means of observation. Our study shows that the dJy sample so collected does not form a bridge connecting RBLs and XBLs. Instead, the sources of the sample are mainly distributed in the main domains of RBLs and XBLs. We find no evidence of the existence of any specific observational class in the medium of the two classes. This suggests that RBLs and XBLs may not be unified merely through observational orientation, because such a unified scheme expects some observational class to form the bridge. In order to have a more reliable study, it is proposed that 1 dJy radio surveys that include some previously missed BL Lac objects should be made.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:A1997XY50900011
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE GALACTIC NUCLEI
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6878
Collection星系研究组
Corresponding AuthorQin YP(覃一平)
AffiliationYunnan Observatory, Chinese Academy of Sciences, Kunming, Yunnan, P.R. China
Recommended Citation
GB/T 7714
Tan YP,Xie GZ,Qin YP. Decijansky radio flux BL Lacertae objects[J]. ASTROPHYSICAL JOURNAL,1997,487(1):L41-L44.
APA Tan YP,Xie GZ,&Qin YP.(1997).Decijansky radio flux BL Lacertae objects.ASTROPHYSICAL JOURNAL,487(1),L41-L44.
MLA Tan YP,et al."Decijansky radio flux BL Lacertae objects".ASTROPHYSICAL JOURNAL 487.1(1997):L41-L44.
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