IHEP OpenIR  > 粒子天体物理中心
ALIGNMENTS OF BLACK HOLES WITH THEIR WARPED ACCRETION DISKS AND EPISODIC LIFETIMES OF ACTIVE GALACTIC NUCLEI
Li YR(李彦荣); Wang JM(王建民); Qiu J(邱捷); Li, YR; Wang, JM; Cheng, C; Qiu, J
2015
发表期刊ASTROPHYSICAL JOURNAL
卷号804期号:1页码:45
通讯作者李彦荣
文章类型Article
摘要Warped accretion disks have attracted intense attention because of their critical role in shaping the spin of supermassive massive black holes (SMBHs) through the Bardeen-Petterson effect, a general relativistic effect that leads to final alignments or anti-alignments between black holes and warped accretion disks. We study such alignment processes by explicitly taking into account the finite sizes of accretion disks and the episodic lifetimes of active galactic nuclei (AGNs) that delineate the duration of gas fueling onto accretion disks. We employ an approximate global model to simulate the evolution of accretion disks, allowing us to determine the gravitomagnetic torque that drives the alignments in a simple way. We then track down the evolutionary paths for mass and spin of black holes both in a single activity episode and over a series of episodes. Given with randomly and isotropically oriented gas fueling over episodes, we calculate the spin evolution with different episodic lifetimes and find that it is quite sensitive to the lifetimes. We therefore propose that the spin distribution of SMBHs can place constraints on the episodic lifetimes of AGNs and vice versa. The applications of our results on the observed spin distributions of SMBHs and the observed episodic lifetimes of AGNs are discussed, although both measurements at present are too ambiguous for us to draw a firm conclusion. Our prescription can be easily incorporated into semi-analytic models for black hole growth and spin evolution.
关键词accretion, accretion disks black hole physics galaxies: active quasars: general
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/804/1/45
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000354189500045
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228519
专题粒子天体物理中心
推荐引用方式
GB/T 7714
Li YR,Wang JM,Qiu J,et al. ALIGNMENTS OF BLACK HOLES WITH THEIR WARPED ACCRETION DISKS AND EPISODIC LIFETIMES OF ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL,2015,804(1):45.
APA 李彦荣.,王建民.,邱捷.,Li, YR.,Wang, JM.,...&Qiu, J.(2015).ALIGNMENTS OF BLACK HOLES WITH THEIR WARPED ACCRETION DISKS AND EPISODIC LIFETIMES OF ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL,804(1),45.
MLA 李彦荣,et al."ALIGNMENTS OF BLACK HOLES WITH THEIR WARPED ACCRETION DISKS AND EPISODIC LIFETIMES OF ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL 804.1(2015):45.
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
456.pdf(1002KB)期刊论文作者接受稿限制开放CC BY-NC-SA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
[李彦荣]的文章
[王建民]的文章
[邱捷]的文章
百度学术
百度学术中相似的文章
[李彦荣]的文章
[王建民]的文章
[邱捷]的文章
必应学术
必应学术中相似的文章
[李彦荣]的文章
[王建民]的文章
[邱捷]的文章
相关权益政策
暂无数据
收藏/分享
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。