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The spectral energy distributions of blazars and the connections among XBLs, RBLs, and OVV quasars
Xie GZ(谢光中)1,2,3; Dai BZ(戴本忠)1,2,3; Liang EW(梁恩维)1,2,4; Ma L(马力)1,2,5; Jiang ZJ(姜泽军)1,2,3; Xie, GZ (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2001
Volume53Issue:3Pages:469-473
DOI10.1093/pasj/53.3.469
Contribution Rank第1完成单位
Indexed BySCI
KeywordBl Lacertae Objects : General Evolution Quasars : General
AbstractIn this paper, we introduce two composite spectral indices, alpha (xox) = alpha (ox) - alpha (x) and alpha (oro) = alpha (or) - alpha (o). In the composite color-color (alpha (xox)-alpha (oro)) diagram, there are three regions: (1) For XBLs and XBL-like RBLs, the values of alpha (xox) is in the range of -1.0-0.0; (2) For RBLs, alpha (xox) is in 0.0-1.5, and alpha (oro) < -0.75; (3) For OVV quasars, alpha (xox) is in 0.0-1.5 and the alpha (oro) > -0.75. Our results support the conclusion that RBLs are intermediate between XBLs and OVV quasars, which has been given by Sambruna et al. (1996, AAA 65.159.120). On the other hand, based on the idea that a group of extragalactic objects which can be regarded as a category with similar physical properties must fit the same relation, using the HST new observational data, we found that there is a strong correlation between the apparent magnitude of the host galaxies and log z for all BL Lac objects (XBLs + RBLs), but OVV quasars lie about 4 magnitude above the Hubble line of 86 BL Lacs. This implies that all XBL-like and XBLs belong to a single category with similar physical properties, while OVV quasars and BL Lacs belong to different populations.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6264
URL查看原文
Archive Date2001-08-01
WOS IDWOS:000169594000011
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordBL-LACERTAE OBJECTS ; POLARIZATION ; GALAXIES
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6945
Collection星系研究组
Corresponding AuthorXie, GZ (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.Yunnan Astronomical Observatory, The Chinese Academy of Science, P.O. Box 110, Kunming 650011, China
2.National Astronomical Observatories, Chinese Academy of Science, Beijing, China
3.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China
4.Physics Department, Guangxi University, Nanning, 530004, China
5.Physics Department, Yunnan Normal University, Kunming, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xie GZ,Dai BZ,Liang EW,et al. The spectral energy distributions of blazars and the connections among XBLs, RBLs, and OVV quasars[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2001,53(3):469-473.
APA Xie GZ,Dai BZ,Liang EW,Ma L,Jiang ZJ,&Xie, GZ .(2001).The spectral energy distributions of blazars and the connections among XBLs, RBLs, and OVV quasars.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,53(3),469-473.
MLA Xie GZ,et al."The spectral energy distributions of blazars and the connections among XBLs, RBLs, and OVV quasars".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 53.3(2001):469-473.
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