Spectral Variability in Radio-Loud Quasars
文献类型：期刊论文
| 作者 | Gu, Minfeng
|
| 刊名 | JOURNAL OF ASTROPHYSICS AND ASTRONOMY
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 35期号:3页码:369-372 |
| 关键词 | Galaxies: active quasars: general galaxies: photometry galaxies: spectroscopy |
| 通讯作者 | 顾敏峰 |
| 英文摘要 | The spectral variability of a sample of 44 Flat-Spectrum Radio Quasars (FSRQs) and 18 Steep-Spectrum Radio Quasars (SSRQs) in SDSS stripe 82 region is investigated. Twenty-five of 44 FSRQs show a bluer-when-brighter trend (BWB), while only one FSRQ shows a redder-when-brighter trend, which is in contrast to our previous results. Eight of 18 SSRQs display a BWB. We found an anticorrelation between the Eddington ratio and the variability amplitude in the r band for SSRQs, which is similar to that in radio-quiet AGNs. This implies that the thermal emission from the accretion disk may be responsible for the variability in SSRQs. The spectral variability from SDSS multi-epoch spectroscopy also shows BWB for several SSRQs, which is consistent with that from photometry. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SKY ; BLAZARS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350481700038 |
| 公开日期 | 2015-02-14 |
| 源URL | [http://119.78.226.72//handle/331011/15742]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Minfeng. Spectral Variability in Radio-Loud Quasars[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2014,35(3):369-372. |
| APA | Gu, Minfeng.(2014).Spectral Variability in Radio-Loud Quasars.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,35(3),369-372. |
| MLA | Gu, Minfeng."Spectral Variability in Radio-Loud Quasars".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 35.3(2014):369-372. |
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来源：上海天文台
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