  We consider the possibility that quark and gluon distributions in the medium
created in high energy heavy ion collisions may be modified by a power law tail
at energies much higher than the temperature. We parametrize such a tail by
Tsallis distributions with an exponent motivated by phenomenology. These
distributions are characterized by an effective temperature scale that we
assume to evolve in time like the temperature for thermal distributions. We
find that including such a tail increases the rates for photon production and
significantly delays the emission times for photons of a fixed energy. We argue
that these effects are sufficiently large that they should be able to account
for photon yields and flow patterns seen in LHC and RHIC experiments.
