| X-选择和射电选择BL Lax天体的性质 |
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| 引用本文： | 樊军辉,王洪光,刘怡,张江水,袁聿海,张永伟,苏江波.X-选择和射电选择BL Lax天体的性质[J].广州大学学报(自然科学版),2007,6(5):1-8. |
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| 作者姓名： | 樊军辉 王洪光 刘怡 张江水 袁聿海 张永伟 苏江波 |
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| 作者单位： | 广州大学天体物理中心,广东广州,510006 |
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| 摘 要： | BL Lac天体表现出一系列特殊的观测性质。按照巡天方式可以分为X-选择和射电选择BL Lac天体。很多人讨论了这两者之间的关系。文章的主要工作是:①选取了两个样本;②收集了最高观测偏振读,寄主星系的绝对星等、核主导系数等;③计算了热光度、同步辐射峰频以及峰频所对应的光度、有效谱指数。基于这些数据,考察了两类BL Lac天体的性质。结果表明:X-选择和射电选择BL Lac天体在热光度、核主导系数以及有效谱指数等性质是不同的,但它们具有很相似的同步峰频光度。
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| 关 键 词： | 星系-BL Lac天体 星系-基本参数 星系-喷流 |
| 文章编号： | 1671-4229（2007）05-0001-08 |
| 修稿时间： | 2007-03-12 |
The properties of X-ray selected and radio-selected BL Lacertae objects |
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| FAN Jun-hui,WANG Hong-guang,LIU Yi,ZHANG Jiang-shui,YUAN Yu-hai,ZHANG Yong-wei,SU Jiang-bo.The properties of X-ray selected and radio-selected BL Lacertae objects[J].Journal og Guangzhou University:Natural Science Edition,2007,6(5):1-8. |
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| Authors: | FAN Jun-hui WANG Hong-guang LIU Yi ZHANG Jiang-shui YUAN Yu-hai ZHANG Yong-wei SU Jiang-bo |
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| Affiliation: | Center for Astrophysics, Guangzhou University, Guangzhou 510006, China |
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| Abstract: | BL Lacertae objects show some particularly observational properties. They were classified as radio-selected and X-ray selected BL Lacertae objects from surveys. Many authors have investigated maximum optical polarization, absolute magnitude of the host galaxy, and core-dominance parameter,cy, and the effective spectral indexes for some objects. Based on those data, we revisited the properties of BL Lacertae objects. The results show that radio-selected and X-ray selected BL Lacertae objects are different in the bolometric luminosity, the core-dominance parameters, and the effective spectral indexes, but they have similar peak-frequency luminosity. |
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| Keywords: | galaxies-BL Lacertae objects-general galaxiesfundamental parameters galaxies-jet |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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