IHEP OpenIR  > 粒子天体物理中心
Outflows from active galactic nuclei: the BLR-NLR metallicity correlation
Du P(杜璞); Wang JM(王建民); Hu C(胡晨); Du, P; Wang, JM; Hu, C; Valls-Gabaud, D; Baldwin, JA; Ge, JQ; Xue, SJ
2014
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号438期号:4页码:2828-2838
摘要The metallicity of active galactic nuclei (AGNs), which can be measured by emission line ratios in their broad- and narrow-line regions (BLRs and NLRs), provides invaluable information about the physical connection between the different components of AGNs. From the archival data bases of the International Ultraviolet Explorer, the Hubble Space Telescope and the Sloan Digital Sky Survey, we have assembled the largest sample available of AGNs which have adequate spectra in both the optical and ultraviolet bands to measure the narrow-line ratio [N ii]/H alpha and also, in the same objects, the broad-line N v/C iv ratio. These permit the measurement of the metallicities in the NLRs and BLRs in the same objects. We find that neither the BLR nor the NLR metallicity correlate with black hole masses or Eddington ratios, but there is a strong correlation between NLR and BLR metallicities. This metallicity correlation implies that outflows from BLRs carry metal-rich gas to NLRs at characteristic radial distances of similar to 1.0 kpc. This chemical connection provides evidence for a kinetic feedback of the outflows to their hosts. Metals transported into the NLR enhance the cooling of the ISM in this region, leading to local star formation after the AGNs turn to narrow-line low-ionization nuclear emission-line regions. This post-AGN star formation is predicted to be observable as an excess continuum emission from the host galaxies in the near-infrared and ultraviolet, which needs to be further explored.
关键词accretion, accretion discs black hole physics ISM: jets and outflows galaxies: abundances galaxies: active galaxies: nuclei
学科领域Astronomy & Astrophysics
DOI10.1093/mnras/stt2386
收录类别SCI
WOS记录号WOS:000332038000008
引用统计
被引频次:10[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/311005/225188
专题粒子天体物理中心
推荐引用方式
GB/T 7714
Du P,Wang JM,Hu C,et al. Outflows from active galactic nuclei: the BLR-NLR metallicity correlation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,438(4):2828-2838.
APA 杜璞.,王建民.,胡晨.,Du, P.,Wang, JM.,...&Xue, SJ.(2014).Outflows from active galactic nuclei: the BLR-NLR metallicity correlation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,438(4),2828-2838.
MLA 杜璞,et al."Outflows from active galactic nuclei: the BLR-NLR metallicity correlation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 438.4(2014):2828-2838.
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
11205.pdf(853KB)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
[杜璞]的文章
[王建民]的文章
[胡晨]的文章
百度学术
百度学术中相似的文章
[杜璞]的文章
[王建民]的文章
[胡晨]的文章
必应学术
必应学术中相似的文章
[杜璞]的文章
[王建民]的文章
[胡晨]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。