| The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273 | |
Dai, Ben-Zhong1; Zhang, Bing-Kai1; Zhang L(张力)1,2
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| 发表期刊 | NEW ASTRONOMY
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| 2006-05 | |
| 卷号 | 11期号:7页码:471-480 |
| DOI | 10.1016/j.newast.2005.11.005 |
| 产权排序 | 第2完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | Quasars : General Quasars : Individual (3c 273) Radio Continuum : Galaxies X-rays : Galaxies |
| 摘要 | The observed data from 2 keV to 5 GHz were complied to investigate possible correlations between different frequency variations by means of discrete correlation function (DCF) analysis. The results show that there are significant flux correlations between different radio bands and the weak correlations between radio and optical variability. The variations of higher frequency components would lead those of lower frequency components. Due to the sparse and uneven data in the X-ray band, the correlations between X-ray and the lower energy bands (radio and optical) cannot be confirmed. In addition, we give the spectral index evolution in each energy band and find out that there are strong anti-correlation between spectral index and flux, in the sense that the spectral index decreases with the flux increases. (c) 2005 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| 文章类型 | Article |
| ISSN | 1384-1076 |
| URL | 查看原文 |
| WOS记录号 | WOS:000237133600002 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | Active Galactic Nuclei ; Bl Lacertae Objects ; Ubvri Photopolarimetric Observations ; Radio Light Curves ; X-ray ; Optical Variability ; Blazars ; 3c-273 ; Sample ; Flux |
| EI入藏号 | 2006179842888 |
| EI主题词 | Astrophysics |
| EI分类号 | 657.2extraterrestrial Physics And Stellar Phenomena - 921mathematics - 922.2mathematical Statistics - 932.1high Energy Physics - 933solid State Physics |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4204 |
| 专题 | 其他 |
| 通讯作者 | Dai, Ben-Zhong |
| 作者单位 | 1.Department of Physics, Yunnan University, Cuihu North Road 2, Kunming, Yunnan 650091, PR China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, PR China |
| 推荐引用方式 GB/T 7714 | Dai, Ben-Zhong,Zhang, Bing-Kai,Zhang L. The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273[J]. NEW ASTRONOMY,2006,11(7):471-480. |
| APA | Dai, Ben-Zhong,Zhang, Bing-Kai,&Zhang L.(2006).The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273.NEW ASTRONOMY,11(7),471-480. |
| MLA | Dai, Ben-Zhong,et al."The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273".NEW ASTRONOMY 11.7(2006):471-480. |
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| The multi-wavelength（794KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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