Black hole masses from X-rays
MetadataShow full item record
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 G. 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 G and both the Eddington ratio L bol/L Edd and the bolometric correction L bol/L 2-10keV. © International Astronomical Union 2013.
Showing items related by title, author, creator and subject.
Curran, Peter; Chaty, S.; Heras, J. (2012)Context: While the sources of X-ray and radio emission in the different states of low-mass X-ray binaries are relatively well understood, the origin of the near-infrared (NIR) and optical emission is more often debated. ...
Wang, S.; Soria, Roberto; Urquhart, Ryan; Liu, J. (2018)We discovered eclipses and dips in two luminous (and highly variable) X-ray sources in M 51. One (CXOM51 J132943.3+471135) is an ultraluminous supersoft source, with a thermal spectrum at a temperature of about 0.1 keV ...
Leon, B.; Jenkins, Susan; Pepin, K.; Chaudhry, H.; Smith, K.; Zalos, G.; Miller, B.; Chen, K.; Remaley, A.; Waclawiw, M.; Sumner, A.; Cannon, R. (2013)Background: Obesity disproportionately affects women, especially those of African descent, and is associated with increases in both fat and muscle masses. Objective: Although increased extremity muscle mass may be ...