Peak frequency of the synchrotron emission and classificatory criteria of BL Lacertae objects
文献类型：期刊论文
| 作者 | Dong YM(董云明)1,2 ; Mei DC(梅东成)1,2; Liang EW(梁恩维)1,3
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2002 |
| 卷号 | 54期号:2页码:171-174 |
| 关键词 | galaxies : BL Lacertae objects : general radiation mechanism : non-thermal |
| ISSN号 | 0004-6264 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Dong, YM (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | In this short paper, we quantitatively consider how the peak frequency of the synchrotron emission can be used to distinguish RBLs and XBLs. A sample of RBLs and XBLs presented by Sambruna et al. (1996, AAA065.159.120) was employed and the peak frequency, nu(p), of the synchrotron emission of each source was calculated by considering the proper physical origin of the X-ray emission for different classes of BL Lac objects. A plot of alpha(rx)-log nu(p) can be divided into four different regions by lines of alpha(rx) = 0.75 and log nu(p) = 14.7 +/- 10.4. All RBL-like objects, defined by alpha(rx) > 0.75, are located in the upper-left region, while all XBL-like objects, defined by alpha(rx) less than or equal to 0.75, are inside the lower-right region. No sources are in the lower-left and upper-right regions, suggesting that the classificatory criteria in terms of the peak frequency should be log nu(p) = 14.7 +/- 0.4. This provides evidence supporting what Giommi et al. (1995, AAA063.158.163) proposed: RBL-like and XBL-like objects can be distinguished by the difference in the peak frequency of the synchrotron emission. The sometime confusing and observationally dependent RBL-XBL terminology should be replaced by the more physical LBL-HBL one. |
| 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] | SPECTRAL ENERGY-DISTRIBUTIONS ; BLAZARS |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/54/2/171 |
| 语种 | 英语 |
| WOS记录号 | WOS:000175349400008 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6956]  |
| 专题 | 云南天文台_星系研究组 |
| 作者单位 | 1.Yunnan Observatory, National Astronomical Observatories, CAS, Kunming, Yunnan 650011, P. R. China 2.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, P. R. China 3.Physics Department, Guangxi University, Nanning 530004, P. R. China |
| 推荐引用方式 GB/T 7714 | Dong YM,Mei DC,Liang EW. Peak frequency of the synchrotron emission and classificatory criteria of BL Lacertae objects[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2002,54(2):171-174. |
| APA | Dong YM,Mei DC,&Liang EW.(2002).Peak frequency of the synchrotron emission and classificatory criteria of BL Lacertae objects.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,54(2),171-174. |
| MLA | Dong YM,et al."Peak frequency of the synchrotron emission and classificatory criteria of BL Lacertae objects".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 54.2(2002):171-174. |
入库方式： OAI收割
来源：云南天文台
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