REVERBERATION MAPPING OF THE BROAD-LINE REGION IN NGC 5548: EVIDENCE FOR RADIATION PRESSURE?
Lu KX(卢开兴); Du P(杜璞); Hu C(胡晨); Li YR(李彦荣); Zhang ZX(张志翔); Wang K(王凯); Huang YK(黄颖科); Wang JM(王建民); Lu, KX; Du, P; Hu, C; Li, YR; Zhang, ZX; Wang, K; Huang, YK; Bi, SL; Bai, JM; Ho, LC; Wang, JM
刊名ASTROPHYSICAL JOURNAL
2016
卷号827期号:2
关键词galaxies: active galaxies: individual (NGC 5548) galaxies: nuclei
DOI10.3847/0004-637X/827/2/118
通讯作者王建民
文章类型Article
英文摘要NGC 5548 is the best-observed reverberation-mapped active galactic nucleus with long-term, intensive monitoring. Here we report results from a new observational campaign between 2015 January and July. We measure the centroid time lag of the broad H beta emission line with respect to the 5100 angstrom continuum and obtain tau(cent) = 7.20(-0.35)(+1.33) days in the rest frame. This yields a black hole mass of M-center dot = 8.71(-2.61)(+3.217) x 10(7)M(circle dot) using a broad H beta line dispersion of 3124 +/- 302 km. s(-1) and a virial factor of f(BLR) = 6.3 +/- 1.5 for the broad-line region (BLR), consistent with the mass measurements from previous H beta campaigns. The high-quality data allow us to construct a velocity-binned delay map for the broad H beta line, which shows a symmetric response pattern around the line center, a plausible kinematic signature of virialized motion of the BLR. Combining all the available measurements of H beta time lags and the associated mean 5100 angstrom luminosities over 18 campaigns between 1989 and 2015, we find that the H beta BLR size varies with the mean optical luminosity, but, interestingly, with a possible delay of 2.35(-1.25)(+3.47) years. This delay coincides with the typical BLR dynamical timescale of NGC 5548, indicating that the BLR undergoes dynamical changes, possibly driven by radiation pressure.
关键词[WOS]ACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; AGN MONITORING PROJECT ; HIGH ACCRETION RATES ; VELOCITY-DELAY MAPS ; SEYFERT-GALAXIES ; ULTRAVIOLET OBSERVATIONS ; SPECTRAL VARIABILITY ; DYNAMICAL MODELS ; SPACE-TELESCOPE
语种英语
WOS记录号WOS:000384001600030
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260823
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
中国科学院高能物理研究所_粒子天体物理中心
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
Lu KX,Du P,Hu C,et al. REVERBERATION MAPPING OF THE BROAD-LINE REGION IN NGC 5548: EVIDENCE FOR RADIATION PRESSURE?[J]. ASTROPHYSICAL JOURNAL,2016,827(2).
APA 卢开兴.,杜璞.,胡晨.,李彦荣.,张志翔.,...&Wang, JM.(2016).REVERBERATION MAPPING OF THE BROAD-LINE REGION IN NGC 5548: EVIDENCE FOR RADIATION PRESSURE?.ASTROPHYSICAL JOURNAL,827(2).
MLA 卢开兴,et al."REVERBERATION MAPPING OF THE BROAD-LINE REGION IN NGC 5548: EVIDENCE FOR RADIATION PRESSURE?".ASTROPHYSICAL JOURNAL 827.2(2016).
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
20160685.pdf(1483KB)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
[卢开兴]的文章
[杜璞]的文章
[胡晨]的文章
百度学术
百度学术中相似的文章
[卢开兴]的文章
[杜璞]的文章
[胡晨]的文章
必应学术
必应学术中相似的文章
[卢开兴]的文章
[杜璞]的文章
[胡晨]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 20160685.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。