New models available

Two new sets of models are now available through the XSPEC extra models page (http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/newmodels.html)

logpar and eplogpar are power-laws whose indices have a log parabolic energy dependence. These models are widely used in blazar research.

optxagnf and optxagn are models for AGN which combine a colour temperature corrected disc and energetically coupled Comptonisation.