The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273
文献类型：期刊论文
| 作者 | Dai, BZ1; Zhang, BK1; Zhang L(张力)1,2 ; Dai, Ben-Zhong
|
| 刊名 | NEW ASTRONOMY
 |
| 出版日期 | 2006-05 |
| 卷号 | 11期号:7页码:471-480 |
| 关键词 | quasars : general quasars : individual (3C 273) radio continuum : galaxies X-rays : galaxies |
| ISSN号 | 1384-1076 |
| 产权排序 | 第二完成单位 |
| 通讯作者 | Dai, BZ (reprint author), Yunnan Univ, Dept Phys, Cuihu N Rd 2, Kunming 650091, Yunnan, Peoples R China. |
| 英文摘要 | 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. |
| 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] | ACTIVE GALACTIC NUCLEI ; BL LACERTAE OBJECTS ; UBVRI PHOTOPOLARIMETRIC OBSERVATIONS ; RADIO LIGHT CURVES ; X-RAY ; OPTICAL VARIABILITY ; BLAZARS ; 3C-273 ; SAMPLE ; FLUX |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1384107605001612?np=y |
| 语种 | 英语 |
| WOS记录号 | WOS:000237133600002 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4204]  |
| 专题 | 云南天文台_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, BZ,Zhang, BK,Zhang L,et al. 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, BZ,Zhang, BK,Zhang L,&Dai, Ben-Zhong.(2006).The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273.NEW ASTRONOMY,11(7),471-480. |
| MLA | Dai, BZ,et al."The multi-wavelength correlations and the evolution of spectral index on the quasar 3C 273".NEW ASTRONOMY 11.7(2006):471-480. |
入库方式： OAI收割
来源：云南天文台
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