A multiple blackbody disk model where local disk temperature T(r) is proportional to , where is a free parameter. The standard disk model, diskbb, is recovered if . If radial advection is important then . See the discussion and examples in, e.g., Mineshige et al. (1994); Hirano et al. (1995); Watarai et al. (2000); Kubota and Makishima (2004); Kubota et al. (2005).
|par1||Tin, temperature at inner disk radius (keV)|
|par2||p, exponent of the radial dependence of the disk temperature|
|norm||, where where is “an apparent” inner disk radius in km, the distance to the source in units of 10 kpc, and the angle of the disk ( is face-on). On the correction factor between the apparent inner disk radius and the realistic radius, see e.g., Kubota et al. (1998).|