variabilityofsoftxrayspectralshapeinblazarsobservedbyrosat
文献类型：期刊论文
| 作者 | Zhao Yongheng ; Wei Jianyan; Cheng Linpeng
|
| 刊名 | chinesejournalofastronomyandastrophysics
 |
| 出版日期 | 2002 |
| 卷号 | 002期号:002页码:117 |
| ISSN号 | 1009-9271 |
| 英文摘要 | In previous paper we have shown that the soft X-ray spectra of two types of Seyfert 1 galaxies behave statistically differently with increasing intensity. In order to see how the spectrum of blazars changes, we made plots of Hardness Ratio 1 versus Count Rates (HR1-Cts) for 18 blazars observed by ROSAT/PSPC. According to our criteria, ten showed a positive HR1-Cts correlation, two a negative correlation, and the remaining six, no clear correlation. Thus,most blazars of our sample show a hardening spectrum during overall flux increase, though some vary randomly. By investigating the photon index of these objects and different radiation theories, we argue that relative dominance between the synchrotron and inverse Compton emission in the soft X-ray band can well account for the differing spectral behaviours and that the different spectral variations might represent a sequence of synchrotron peaked frequency. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/45085]  |
| 专题 | 光学部_LAMOST运行和发展中心 |
| 作者单位 | 中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Zhao Yongheng,Wei Jianyan,Cheng Linpeng. variabilityofsoftxrayspectralshapeinblazarsobservedbyrosat[J]. chinesejournalofastronomyandastrophysics,2002,002(002):117. |
| APA | Zhao Yongheng,Wei Jianyan,&Cheng Linpeng.(2002).variabilityofsoftxrayspectralshapeinblazarsobservedbyrosat.chinesejournalofastronomyandastrophysics,002(002),117. |
| MLA | Zhao Yongheng,et al."variabilityofsoftxrayspectralshapeinblazarsobservedbyrosat".chinesejournalofastronomyandastrophysics 002.002(2002):117. |
入库方式： OAI收割
来源：国家天文台
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