  Varying the proposition that acceleration itself would simulate a thermal
environment, we investigate the semiclassical photon radiation as a possible
telemetric thermometer of accelerated charges. Based on the classical Jackson
formula we obtain the equivalent photon intensity spectrum stemming from a
constantly accelerated charge and demonstrate its resemblances to a thermal
distribution for high transverse momenta. The inverse transverse slope differs
from the famous Unruh temperature: it is larger by a factor of pi. We compare
the resulting direct photon spectrum with experimental data for AuAu collisions
at RHIC and speculate about further, analytically solvable acceleration
histories.
