KERRBB: An XSPEC Subroutine for Computing the Blackbody Spectrum of a Thin Accretion Disk around a Kerr Black Hole

KERRBB is a multi-temperature blackbody model for a thin, steady state, general relativistic accretion disk around a Kerr black hole. The self-irradiation of the disk is considered, and the torque at the inner boundary of the disk is allowed to be nonzero. The effect of Compton scattering in the disk atmosphere is included. This model is intended as an extension to GRAD, which assumes that the black hole is nonrotating.

• Brief Description

• Scientific Paper

• Download: KERRBB is already incorporated into the official release of Xspec 12 (and later version), see the homepage of Xspec. However, if you would like to install it as a local model (e.g., you have an Xspec 11 rather than 12), you can do it by downloading the source, lmodel.dat description, and the required data file kerrbb.fits. This last file should be placed in $LHEASOFT/../spectral/xspec/manager.