YNAO OpenIR  > 星系研究组
2MASS observation of BL Lac objects II
Mao LS(毛李胜)1,2,3; Mao, LS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationNEW ASTRONOMY
2011-12
Volume16Issue:8Pages:503-529
DOI10.1016/j.newast.2011.05.002
Contribution Rank第1完成单位
Indexed BySCI
KeywordBl Lacertae Objects Infrared
AbstractIn this paper, we have searched for the Two Micron All Sky Survey (2MASS) counterparts of 1434 BL Lacs. Eight hundred and thirty-three of 1434 BL Lacs (similar to 58%) have spatially coincident 2MASS counterparts. Fermi-detected BL Lacs (FBLs) have a much higher 2MASS detection rate than non-Fermi-detected BL Lacs (non-FBLs) (similar to 95% vs 49%). We compare the near-infrared (NIR) apparent magnitudes, monochromatic luminosities and spectral indices of different subclasses of BL Lacs: (i) FBLs are significantly brighter and more luminous than non-FBLs; (ii) low-energy peaked BL Lacs (LBLs) are significantly more luminous than high-energy peaked BL Lacs (HBLs); (iii) the NIR spectral index, alpha(IR), shows a sequence of decrease from LBLs to intermediate-energy peaked BL Lacs (IBLs) then to HBLs. The K-S band luminosity and NIR spectral index are both strongly anti-correlated with the synchrotron peak frequency (v(peak)). About 66% of BL Lacs in our sample are located close to the power law line in the J-H-H-K-S diagram, which implies predominantly non-thermal radiation in the NIR range. We label 218 BL Lacs whose NIR spectra show convex curvatures probably due to the significant contaminations of host-galaxy starlight. Finally we investigate the correlation between NIR and gamma-ray emission using the 2MASS observational data. (C) 2011 Elsevier B.V. All rights reserved.
Funding OrganizationNational Aeronautics and Space Administration ; National Science Foundation ; Educational Commission of Yunnan Province of China [07Y10198]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1384-1076
URL查看原文
Archive Date2012-07-09
WOS IDWOS:000293117000005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordRAY-LOUD BLAZARS ; SPECTRAL ENERGY-DISTRIBUTIONS ; ACTIVE GALACTIC NUCLEI ; LARGE-AREA TELESCOPE ; NEAR-INFRARED OBSERVATIONS ; SELF-COMPTON MODEL ; ALL-SKY SURVEY ; LACERTAE OBJECTS ; GAMMA-RAY ; X-RAY
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7049
Collection星系研究组
Corresponding AuthorMao, LS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
3.Department of Physics, Yunnan Normal University, Kunming 650092, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Mao LS,Mao, LS . 2MASS observation of BL Lac objects II[J]. NEW ASTRONOMY,2011,16(8):503-529.
APA Mao LS,&Mao, LS .(2011).2MASS observation of BL Lac objects II.NEW ASTRONOMY,16(8),503-529.
MLA Mao LS,et al."2MASS observation of BL Lac objects II".NEW ASTRONOMY 16.8(2011):503-529.
Files in This Item:
File Name/Size DocType Version Access License
2MASS observation of(970KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Mao LS(毛李胜)]'s Articles
[Mao, LS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Mao LS(毛李胜)]'s Articles
[Mao, LS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Mao LS(毛李胜)]'s Articles
[Mao, LS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2MASS observation of BL Lac objects II.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.