The HEASARC is running nominally. If you are trying to download a lot of data, please consider using the AWS cloud copy of most HEASARC data. As an alternative to locally installing HEASoft, SciServer is an online platform which has the software installed and data available when you login.
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kerrdisk: accretion disk line emission with BH spin as free parameter
Model for an accretion disk broad emission line with the black hole spin allowed to be a free parameter. A detailed description can be found in Brenneman & Reynolds (2006).
This model is quite slow so is best used after models such as laor or diskline have been employed to get an estimate of the best-fit parameters.
| par1 | rest frame line energy (keV) |
| par2 | emissivity index for the inner disk |
| par3 | emissivity index for the outer disk |
| par4 | break radius separating the inner and outer portions of the disk (gravitational radii) |
| par5 | dimensionless black hole spin |
| par6 | disk inclination angle to the line of sight (degrees) |
| par7 | inner radius of the disk in units of the radius of marginal stability |
| par8 | outer radius of the disk in units of the radius of marginal stability |
| par9 | redshift z |
| norm | flux in line (photons/cm /s) |