Hostname: page-component-8448b6f56d-cfpbc Total loading time: 0 Render date: 2024-04-16T15:13:48.188Z Has data issue: false hasContentIssue false
  • English
  • Français

Black hole masses from X-rays

Published online by Cambridge University Press:  21 February 2013

Xin-Lin Zhou  and
Roberto Soria
Xin-Lin Zhou
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: zhouxl@nao.cas.cn
Roberto Soria
Affiliation:
International Centre for Radio Astronomy Research, Curtin UniversityGPO Box U1987, Perth, WA 6845, Australia email: roberto.soria@icrar.org
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We discuss two methods to estimate black hole (BH) masses using X-ray data only: from the X-ray variability amplitude and from the photon index Γ. The first method is based on the anti-correlation between BH mass and X-ray variability amplitude. Using a sample of AGN with BH masses from reverberation mapping, we show that this method shows small intrinsic scatter. The second method is based on the correlation between Γ and both the Eddington ratio Lbol/LEdd and the bolometric correction Lbol/L2−10keV.

Keywords

Accretionaccretion disksX-rays:binariesX-rays: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 371 - 372
Copyright
Copyright © International Astronomical Union 2013

References

Ai, Y. L., Yuan, W., Zhou, H. Y., Wang, T. G., & Zhang, S. H. 2011, ApJ, 727, 31Google Scholar
Corbel, S., Körding, E., & Kaaret, P. 2008, MNRAS, 389, 1697CrossRefGoogle Scholar
Gu, M., & Cao, X. 2009, MNRAS, 399, 349CrossRefGoogle Scholar
Jin, C., Ward, M., & Done, C. 2012, MNRAS, 425, 907Google Scholar
Lu, Y., & Yu, Q. 2001, MNRAS, 324, 653Google Scholar
McHardy, I. M., Koerding, E., Knigge, C., Uttley, P., & Fender, R. P. 2006, Nature, 444, 730Google Scholar
Nandra, K., George, I. M., Mushotzky, R. F., Turner, T. J., & Yaqoob, T. 1997, ApJ, 476, 70Google Scholar
O'Neill, P. M., Nandra, K., Papadakis, I. E., & Turner, T. J. 2005, MNRAS, 358, 1405Google Scholar
Ponti, G., et al. 2012, A&A, 542, 83Google Scholar
Shemmer, O., Brandt, W. N., Netzer, H., Maiolino, R., & Kaspi, S. 2008, ApJ, 682, 81Google Scholar
Turner, T. J., George, I. M., Nandra, K., & Turcan, D. 1999, ApJ, 524, 667Google Scholar
Vaughan, S., Edelson, R., Warwick, R. S., & Uttley, P. 2003, MNRAS, 345, 1271Google Scholar
Wu, Q. & Gu, M. 2008, ApJ, 682, 212Google Scholar
Zhou, X. L., Zhang, S. N., Wang, D. X., & Zhu, L. 2010, ApJ, 710, 16Google Scholar
Zhou, X. L. & Zhao, Y. H. 2010, ApJ, 720, L206Google Scholar