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diskpbb: accretion disk, power-law dependence for T(r)

A multiple blackbody disk model where local disk temperature T(r) is proportional to $r^{-p}$, where $p$ is a free parameter. The standard disk model, diskbb, is recovered if $p = 0.75$. If radial advection is important then $p < 0.75$. 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 $(R_{in}/D_{10})^2 \cos\theta$, where where $R_{in}$ is ``an apparent'' inner disk radius in km, $D_{10}$ the distance to the source in units of 10 kpc, and $\theta$ the angle of the disk ($\theta
= 0$ 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.


next up previous contents
Next: diskpn: accretion disk, black Up: Additive Model Components Previous: disko: accretion disk, inner,