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, ApJ, 426, 308; Hirano et al. 1995, ApJ, 446, 350; Watarai et al. 2000, PASJ, 52, 133; Kubota and Makishima 2004, ApJ, 601, 428; Kubota et al. 2005, ApJ, 631, 1062.
|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, PASJ, 50, 667.|