Evolutionary consequences of dusty tori in active galactic nuclei
Wang JM(王建民); Zhang EP(张恩鹏); Luo B(罗斌); Wang, JM; Zhang, EP; Luo, B
刊名ASTROPHYSICAL JOURNAL
2005
卷号627期号:1页码:L5-L8
关键词galaxies : active galaxies : nuclei
学科分类Astronomy & Astrophysics
DOI10.1086/431970
通讯作者Chinese Acad Sci, Inst High Energy Phys, High Energy Astrophys Lab, Beijing 100039, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
文章类型Article
英文摘要Deep surveys by Chandra and the Hubble Space Telescope (HST) show that active galactic nucleus (AGN) populations are changing with hard X-ray luminosities. Thus, an interesting question arises as to whether or not the dusty torus is evolving with the central engines. We assemble a sample of 50 radio-quiet Palomar-Green quasars to tackle this problem. The covering factors of the dusty tori can be estimated from the multiwavelength continuum. We find that they are strongly correlated with the hard X-ray luminosity. Interestingly, this correlation agrees with the fraction of type II AGNs discovered by Chandra and HST, implying strong evidence of the changing results of the AGN population from the evolution of the tori. We also find that the frequencies of the dips at around 1 mm in the continuum correlate with the covering factors in the present sample, indicating that the dip frequencies are adjusted by the covering factors. In the scenario of the fueling of a black hole from the torus, the covering factor is good, and the dip frequency is a potential indicator of the torus evolution.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
原文出处查看原文
语种英语
WOS记录号WOS:000230086500002
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240280
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Wang JM,Zhang EP,Luo B,et al. Evolutionary consequences of dusty tori in active galactic nuclei[J]. ASTROPHYSICAL JOURNAL,2005,627(1):L5-L8.
APA 王建民,张恩鹏,罗斌,Wang, JM,Zhang, EP,&Luo, B.(2005).Evolutionary consequences of dusty tori in active galactic nuclei.ASTROPHYSICAL JOURNAL,627(1),L5-L8.
MLA 王建民,et al."Evolutionary consequences of dusty tori in active galactic nuclei".ASTROPHYSICAL JOURNAL 627.1(2005):L5-L8.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
7952.pdf(82KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[王建民]的文章
[张恩鹏]的文章
[罗斌]的文章
百度学术
百度学术中相似的文章
[王建民]的文章
[张恩鹏]的文章
[罗斌]的文章
必应学术
必应学术中相似的文章
[王建民]的文章
[张恩鹏]的文章
[罗斌]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 7952.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。