Fermi耀变体的辐射特性和演化研究

论文摘要

搜集和计算了734个Fermi耀变体样本,包括322个蝎虎天体(其中148个高峰频蝎虎天体、73个中峰频蝎虎天体以及101个低峰频蝎虎天体)和412个平谱射电类星体(其中18个高峰频平谱射电类星体、45个中峰频平谱射电类星体以及349个低峰频平谱射电类星体)。研究了每个子类的红移分布、黑洞质量分布以及γ射线光度的分布,并对其红移、黑洞质量、γ射线光度以及同步峰值频率的相关性进行了分析,结果表明:(1)根据红移与γ射线光度分别从高到低的排序,得到Fermi耀变体的演化序列遵循平谱射电类星体→蝎虎天体,且高同步峰频耀变体→中同步峰频耀变体→低同步峰频耀变体,但根据黑洞质量从高到低得到的演化序列不同,这可能是黑洞质量的估计误差以及黑洞质量样本数量较少造成的;(2)Fermi耀变体每个子类的红移与黑洞质量、黑洞质量与γ射线光度之间正相关;(3)Fermi耀变体每个子类的红移、γ射线光度分别与同步峰频之间反相关,黑洞质量与同步峰频之间不存在相关性。

论文目录

文章来源

类型: 期刊论文

作者: 任国伟,张雄,张皓晶,李富婷,徐小林,余莲,吴月承,晏培琳

关键词: 耀变体,红移,黑洞质量,射线光度,演化序列

来源: 天文研究与技术 2019年03期

年度: 2019

分类: 基础科学

专业: 天文学

单位: 云南师范大学物理与电子信息学院

基金: 国家自然科学基金(11663009),云南省高校高能天体物理重点实验室资助

分类号: P157.6

DOI: 10.14005/j.cnki.issn1672-7673.20181121.001

页码: 253-261

总页数: 9

文件大小: 3871K

下载量: 80

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标签：耀变体论文;  红移论文;  黑洞质量论文;  射线光度论文;  演化序列论文;