| Effects of redshift on the classifying criteria of BL lacertae objects | |
Ma L(马力)1,3 ; Chen LE(陈洛恩)2,3; Xie GZ(谢光中)3,4; Ren, JY2; Xie, ZH1; Zhou SB(周曙白)3,4; Wu, H1; Mei, DC4; Ma, L (reprint author), Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China.
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| 发表期刊 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
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| 2007 | |
| 卷号 | 7期号:3页码:345-352 |
| DOI | 10.1088/1009-9271/7/3/03 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 关键词 | Galaxies : Bl Lacertae Objects : General Galaxies : Fundamental Parameter Galaxies : High-redshift |
| 摘要 | We have collected a sample of 70 BL Lacs (33 radio-selected BL Lacs and 37 X-ray selected BL Lacs) with multi-waveband data for investigating the classifying criteria of BL Lacertae Objects. For each source, we estimate its luminosities in radio, optical and X-ray, the broad-band spectral index from radio to X-ray and the peak frequency' of the synchrotron emission, and make a statistical analysis of the data obtained. Our main results are as follows: (1) The broad-band spectral index and the peak frequency have no correlation with the redshift, while they are inversely correlated with each other and they could be regarded as equivalent classifying criteria of BL Lac objects. (2) There are significant effects of the luminosity/redshift relation on the observed luminosity distribution in our sample, hence, if the radio luminosity is to be used as a classifying criterion of BL Lac objects, it should not be regarded as equivalent to the broad-band spectral index or the peak frequency. (3) Our results supply a specific piece of evidence for the suggestion that the use of luminosities always introduces a redshift bias to the data and show that the location of the peak frequency is not always linked to the luminosity of any wave band. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 1009-9271 |
| URL | 查看原文 |
| WOS记录号 | WOS:000247553300003 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | SPECTRAL ENERGY-DISTRIBUTIONS ; ACTIVE GALACTIC NUCLEI ; X-RAY-SPECTRA ; ROSAT OBSERVATIONS ; CLASSIFICATORY CRITERIA ; LOUD BLAZARS ; RADIO ; LUMINOSITIES ; CONNECTION ; FREQUENCY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/7030 |
| 专题 | 星系研究组 |
| 通讯作者 | Ma, L (reprint author), Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China. |
| 作者单位 | 1.Department of Physics, Yunnan Normal University, Kunming 650092 2.Department of Physics, Yuxi Normal College, Yuxi 653100 3.National Astronomical Observatories/ Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 4.Department of Physics, Yunnan University, Kunming 650091 |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Ma L,Chen LE,Xie GZ,et al. Effects of redshift on the classifying criteria of BL lacertae objects[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(3):345-352. |
| APA | Ma L.,Chen LE.,Xie GZ.,Ren, JY.,Xie, ZH.,...&Ma, L .(2007).Effects of redshift on the classifying criteria of BL lacertae objects.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(3),345-352. |
| MLA | Ma L,et al."Effects of redshift on the classifying criteria of BL lacertae objects".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.3(2007):345-352. |
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| Effects of Redshift （294KB） | 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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