2MASS observation of BL Lac objects
文献类型：期刊论文
| 作者 | Chen PS(陈培生) ; Fu HW(符好文); Gao YF(高亦菲)
|
| 刊名 | NEW ASTRONOMY
 |
| 出版日期 | 2005-10 |
| 卷号 | 11期号:1页码:27-42 |
| 关键词 | galaxy : AGN BL Lac object infrared : galaxy |
| ISSN号 | 1384-1076 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Chen, PS (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | NEAR-INFRARED OBSERVATIONS ; SPECTRUM RADIO-SOURCES ; LACERTAE OBJECTS ; MULTIFREQUENCY OBSERVATIONS ; ACTIVE NUCLEI ; HOST GALAXIES ; BLAZARS ; PHOTOMETRY ; SAMPLE ; VARIABILITY |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1384107605000758 |
| 语种 | 英语 |
| WOS记录号 | WOS:000232917200003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4186]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | National Astronomical Observatories, Yunnan Observatory, CAS, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Chen PS,Fu HW,Gao YF. 2MASS observation of BL Lac objects[J]. NEW ASTRONOMY,2005,11(1):27-42. |
| APA | Chen PS,Fu HW,&Gao YF.(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. |
入库方式： OAI收割
来源：云南天文台
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