Skip to main content

The NASA/GSFC network is currently experiencing intermittent issues that affect our services. We are working on it and apologize for the inconvenience.
The offline tool hark (also on github) can be used to find and download data from the cloud.

Xspec Home Page

next up previous contents
Next: logpar, zlogpar: log-parabolic blazar Up: Additive Model Components Previous: laor: accretion disk, black   Contents


laor2: accretion disk with broken-power law emissivity profile, black hole emission line

An emission line from an accreti on disk with a broken power-law emissivity profile around a black hole. Uses Ari Laor's calculation including GR effects (Laor (1991)). Modified from laor model by Andy Fabian.

par1 Line energy in keV
par2 $Index$: power law dependence of emissivity (scales as $R^{-Index}$)
par3 inner radius (units of $GM/c^2$)
par4 outer radius (units of $GM/c^2$)
par5 inclination (degrees)
par6 radius at which emissivity power-law index changes
par7 Emissivity power-law index for radii >par6
norm photons/cm$^2$/s in the line