| New evidence for the unified scheme of BL Lacertae objects and FR I radio galaxies | |
| Bai JM(白金明)1,2; Lee, MG1; Bai, JM (reprint author), Seoul Natl Univ, SEES, Astron Program, Seoul 151742, South Korea. | |
| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2001-02-10 | |
| 卷号 | 548期号:1页码:244-248 |
| DOI | 10.1086/318695 |
| 产权排序 | 第2完成单位 |
| 收录类别 | SCI |
| 关键词 | Bl Lacertae Objects : General Galaxies : Active Radiation Mechanisms : Nonthermal Radio Continuum : Galaxies X-rays : Galaxies |
| 摘要 | In this paper, we collect radio and X-ray observations for most Fanaroff-Riley I (FR I) radio galaxies in the Zirbel-Baum radio galaxy sample and investigate the distribution of the radio-to-X-ray effective spectral index, alpha (rx), to test the unified scheme of BL Lac objects and FR I radio galaxies. It is found that the range of alpha (rx) for FR I radio galaxies is almost the same as that for BL Lac objects, that the distribution of alpha (rx) probably peaks at the same position as BL Lac objects, and that the distribution of alpha (rx) for FR I galaxies is similar to that for BL Lac objects. These suggest that there exist two subclasses of FR I radio galaxies : one is HBL-like, and the other is LBL-like, corresponding to high-energy-peaked (HBL) and low-energy-peaked (LBL) BL Lac objects, respectively. This result is consistent with previous VLA observations and supports the unified scheme of BL Lac objects and FR I radio galaxies. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| 归档日期 | 2001-02-21 |
| WOS记录号 | WOS:000166939900020 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; SPECTRAL ENERGY-DISTRIBUTIONS ; SPACE-TELESCOPE OBSERVATIONS ; X-RAY OBSERVATIONS ; PARENT POPULATION ; COMPLETE SAMPLE ; SUPERLUMINAL MOTION ; HST OBSERVATIONS ; VLA OBSERVATIONS ; HOST GALAXIES |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6943 |
| 专题 | 星系研究组 |
| 通讯作者 | Bai, JM (reprint author), Seoul Natl Univ, SEES, Astron Program, Seoul 151742, South Korea. |
| 作者单位 | 1.Astronomy Program, SEES, Seoul National University, Seoul 151-742, Korea 2.Yunnan Astronomical Observatory, The Chinese Academy of Science, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Bai JM,Lee, MG,Bai, JM . New evidence for the unified scheme of BL Lacertae objects and FR I radio galaxies[J]. ASTROPHYSICAL JOURNAL,2001,548(1):244-248. |
| APA | Bai JM,Lee, MG,&Bai, JM .(2001).New evidence for the unified scheme of BL Lacertae objects and FR I radio galaxies.ASTROPHYSICAL JOURNAL,548(1),244-248. |
| MLA | Bai JM,et al."New evidence for the unified scheme of BL Lacertae objects and FR I radio galaxies".ASTROPHYSICAL JOURNAL 548.1(2001):244-248. |
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| New evidence for the（75KB） | 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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