NAOC Open IR  > 空间科学研究部
CALIBRATING THE CORRELATION BETWEEN BLACK HOLE MASS AND X-RAY VARIABILITY AMPLITUDE: X-RAY ONLY BLACK HOLE MASS ESTIMATES FOR ACTIVE GALACTIC NUCLEI AND ULTRA-LUMINOUS X-RAY SOURCES
Zhou, Xin-Lin1,2,3; Zhang, Shuang-Nan4,5; Wang, Ding-Xiong6; Zhu, Ling2,3
2010-02-10
发表期刊ASTROPHYSICAL JOURNAL
卷号710期号:1页码:16-23
摘要A calibration is made for the correlation between the X-ray Variability Amplitude (XVA) and black hole (BH) mass. The correlation for 21 reverberation-mapped Active Galactic Nuclei (AGNs) appears very tight, with an intrinsic dispersion of 0.20 dex. The intrinsic dispersion of 0.27 dex can be obtained if BH masses are estimated from the stellar velocity dispersions. We further test the uncertainties of mass estimates from XVAs for objects that have been observed multiple times with good enough data quality. The results show that the XVAs derived from multiple observations change by a factor of 3. This means that BH mass uncertainty from a single observation is slightly worse than either reverberation-mapping or stellar velocity dispersion measurements; however, BH mass estimates with X-ray data only can be more accurate if the mean XVA value from more observations is used. With this calibrated relation, the BH mass and accretion rate may be determined for a large sample of AGNs with the planned International X-ray Observatory mission. Proper interpretation of the first AGN X-ray quasi-periodic oscillation (QPO), seen in the Seyfert galaxy REJ1034+396, depends on its BH mass, which is not currently known very well. Applying this relation, the BH mass of REJ1034+396 is found to be 4(-2)(+3) x 10(6) M(circle dot). The high end of the mass range follows the relationship between the 2f(0) frequencies of high-frequency QPO and the BH masses derived from the Galactic X-ray binaries. We also calculate the high-frequency constant C = 2.37 M(circle dot) Hz(-1) from 21 reverberation-mapped AGNs. As suggested by Gierlinski et al., M(BH) = C/C(M), where C(M) is the high-frequency variability derived from XVA. Given the similar shape of power-law dominated X-ray spectra in ultra-luminous X-ray sources (ULXs) and AGNs, this can be applied to BH mass estimates of ULXs. We discuss the observed QPO frequencies and BH mass estimates in the ULXs M82 X-1 and NGC 5408 X-1 and favor ULXs as intermediate mass BH systems.
关键词Galaxies: Individual (Re j1034+396) Accretion X-rays: Binaries Accretion Disks X-rays: Galaxies
DOI10.1088/0004-637X/710/1/16
收录类别SCI
语种英语
WOS记录号WOS:000273850800002
引用统计
被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7721
专题空间科学研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
3.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
5.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA
6.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Xin-Lin,Zhang, Shuang-Nan,Wang, Ding-Xiong,et al. CALIBRATING THE CORRELATION BETWEEN BLACK HOLE MASS AND X-RAY VARIABILITY AMPLITUDE: X-RAY ONLY BLACK HOLE MASS ESTIMATES FOR ACTIVE GALACTIC NUCLEI AND ULTRA-LUMINOUS X-RAY SOURCES[J]. ASTROPHYSICAL JOURNAL,2010,710(1):16-23.
APA Zhou, Xin-Lin,Zhang, Shuang-Nan,Wang, Ding-Xiong,&Zhu, Ling.(2010).CALIBRATING THE CORRELATION BETWEEN BLACK HOLE MASS AND X-RAY VARIABILITY AMPLITUDE: X-RAY ONLY BLACK HOLE MASS ESTIMATES FOR ACTIVE GALACTIC NUCLEI AND ULTRA-LUMINOUS X-RAY SOURCES.ASTROPHYSICAL JOURNAL,710(1),16-23.
MLA Zhou, Xin-Lin,et al."CALIBRATING THE CORRELATION BETWEEN BLACK HOLE MASS AND X-RAY VARIABILITY AMPLITUDE: X-RAY ONLY BLACK HOLE MASS ESTIMATES FOR ACTIVE GALACTIC NUCLEI AND ULTRA-LUMINOUS X-RAY SOURCES".ASTROPHYSICAL JOURNAL 710.1(2010):16-23.
条目包含的文件
条目无相关文件。
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
[Zhou, Xin-Lin]的文章
[Zhang, Shuang-Nan]的文章
[Wang, Ding-Xiong]的文章
百度学术
百度学术中相似的文章
[Zhou, Xin-Lin]的文章
[Zhang, Shuang-Nan]的文章
[Wang, Ding-Xiong]的文章
必应学术
必应学术中相似的文章
[Zhou, Xin-Lin]的文章
[Zhang, Shuang-Nan]的文章
[Wang, Ding-Xiong]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。