2MASS observation of BL Lac objects

doi:10.1016/j.newast.2005.05.004

YNAO OpenIR > 其他

	2MASS observation of BL Lac objects
	Chen PS(陈培生); Fu HW(符好文); Gao YF(高亦菲); Chen, PS (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊	NEW ASTRONOMY
	2005-10
卷号	11 期号:1 页码:27-42
DOI	10.1016/j.newast.2005.05.004
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Galaxy : Agn Bl Lac Object Infrared : Galaxy
摘要	The 2MASS observations of known BL Lac objects are presented in this paper. The 2MASS associations for 511 BL Lac objects are identified. From the 2MASS near infrared two-color diagram it is seen that majority (about 70%) of objects are lying alone with or very close to the power law distribution implying that there is no need to invoke any significant radiation mechanism additional to a power law continuum for those sources. However, many sources (about 30%) are still located very close to the blackbody distribution indicative of the possible contributions from the host galaxies. In addition, the average spectral index derived for the near infrared region is 0.66 +/- 0.34 that is rather smaller than that from the previous results indicative of the possible influence from the host galaxies and/or from the lack or weakness of the radio emissions from most sources newly discovered by recent X-ray missions. (C) 2005 Elsevier B.V. All rights reserved.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1384-1076
URL	查看原文
归档日期	2005-08-23
WOS记录号	WOS:000232917200003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	NEAR-INFRARED OBSERVATIONS ; SPECTRUM RADIO-SOURCES ; LACERTAE OBJECTS ; MULTIFREQUENCY OBSERVATIONS ; ACTIVE NUCLEI ; HOST GALAXIES ; BLAZARS ; PHOTOMETRY ; SAMPLE ; VARIABILITY
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4186
专题	其他
通讯作者	Chen, PS (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位	National Astronomical Observatories, Yunnan Observatory, CAS, Kunming 650011, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Chen PS,Fu HW,Gao YF,et al. 2MASS observation of BL Lac objects[J]. NEW ASTRONOMY,2005,11(1):27-42.
APA	Chen PS,Fu HW,Gao YF,&Chen, PS .(2005).2MASS observation of BL Lac objects.NEW ASTRONOMY,11(1),27-42.
MLA	Chen PS,et al."2MASS observation of BL Lac objects".NEW ASTRONOMY 11.1(2005):27-42.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
2MASS observation of（238KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文