YNAO OpenIR  > 南方基地
Unveiling slim accretion disc in AGN through X-ray and infrared observations
Castello-Mor, Nuria1; Kaspi, Shai1,2; Netzer, Hagai1; Du, Pu3; Hu, Chen3; Ho, Luis C.4,5; Bai JM(白金明)6; Bian, Wei-Hao7; Yuan, Ye-Fei8; Wang, Jian-Min3,9
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-05-01
卷号467期号:1页码:1209-1221
DOI10.1093/mnras/stx153
产权排序第6完成单位
收录类别SCI ; EI
关键词Accretion Accretion Discs Galaxies: Active
摘要

In this work, which is a continuation of Castello-Mor et al., we present new X-ray and infrared (IR) data for a sample of active galactic nuclei (AGN) covering a wide range in Eddington ratio over a small luminosity range. In particular, we rigorously explore the dependence of the optical-to-X-ray spectral index alpha(OX) and the IR-to-optical spectral index on the dimensionless accretion rate, M = m/eta, where m = L-AGN/L-Edd and eta is the mass-to-radiation conversion efficiency, in low-and high-accretion rate sources. We find that the spectral energy distribution (SED) of the faster accreting sources is surprisingly similar to those from the comparison sample of sources with lower accretion rate. In particular: (i) The optical-to-UV AGN SED of slow and fast accreting AGN can be fitted with thin accretion disc (AD) models. (ii) The value of alpha(OX) is very similar in slow and fast accreting systems up to a dimensionless accretion rate M-c similar to 10. We only find a correlation between alpha(OX) and M for sources with M > Mc. In such cases, the faster accreting sources appear to have systematically larger aOX values. (iii) We also find that the torus in the faster accreting systems seems to be less efficient in reprocessing the primary AGN radiation having lower IR-to-optical spectral slopes. These findings, failing to recover the predicted differences between the SEDs of slim and thin ADs within the observed spectral window, suggest that additional physical processes or very special geometry act to reduce the extreme-UV radiation in fast accreting AGN. This may be related to photon trapping, strong winds and perhaps other yet unknown physical processes.

资助项目Israel Science Foundation (ISF)[83/13] ; National Science Foundation Committee (NSFC) ; ISSI ; Chinese Academy of Science[XDB09030102] ; National Natural Science Foundation of China[11473002] ; Ministry of Science and Technology of China[2016YFA0400702] ; National Science Foundations of China[11373024] ; ISF-NSFC[83/13]
项目资助者Israel Science Foundation (ISF)[83/13] ; National Science Foundation Committee (NSFC) ; ISSI ; Chinese Academy of Science[XDB09030102] ; National Natural Science Foundation of China[11473002] ; Ministry of Science and Technology of China[2016YFA0400702] ; National Science Foundations of China[11373024] ; ISF-NSFC[83/13]
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000398418900086
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; SPECTRAL ENERGY-DISTRIBUTION ; SUPER-EDDINGTON ACCRETION ; SUPERMASSIVE BLACK-HOLES ; SEYFERT 1 GALAXIES ; RADIUS-LUMINOSITY RELATIONSHIP ; BRIGHT SERENDIPITOUS SURVEY ; RATES ; EMISSION ; SAMPLE
EI入藏号20221712018395
EI主题词Galaxies
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/10029
专题南方基地
通讯作者Castello-Mor, Nuria; Kaspi, Shai; Netzer, Hagai
作者单位1.School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
2.Wise Observatory, School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
3.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China
4.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
5.Department of Astronomy, School of Physics, Peking University, Beijing 100871, China
6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
7.Physics Department, Nanjing Normal University, Nanjing 210097, China
8.Department of Astronomy, University of Science and Technology of China, Hefei 230026, China
9.National Astronomical Observatories of China, Chinese Academy of Sciences, 20A Datun Road, Beijing 100020, China
推荐引用方式
GB/T 7714
Castello-Mor, Nuria,Kaspi, Shai,Netzer, Hagai,et al. Unveiling slim accretion disc in AGN through X-ray and infrared observations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,467(1):1209-1221.
APA Castello-Mor, Nuria.,Kaspi, Shai.,Netzer, Hagai.,Du, Pu.,Hu, Chen.,...&Wang, Jian-Min.(2017).Unveiling slim accretion disc in AGN through X-ray and infrared observations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,467(1),1209-1221.
MLA Castello-Mor, Nuria,et al."Unveiling slim accretion disc in AGN through X-ray and infrared observations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 467.1(2017):1209-1221.
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
Unveiling slim accre(1523KB)期刊论文出版稿开放获取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
[Castello-Mor, Nuria]的文章
[Kaspi, Shai]的文章
[Netzer, Hagai]的文章
百度学术
百度学术中相似的文章
[Castello-Mor, Nuria]的文章
[Kaspi, Shai]的文章
[Netzer, Hagai]的文章
必应学术
必应学术中相似的文章
[Castello-Mor, Nuria]的文章
[Kaspi, Shai]的文章
[Netzer, Hagai]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Unveiling slim accretion disc in AGN through X-ray and infrared observations.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。