THE LUMINOSITY OF A FREELY FALLING LIGHT SOURCE AND THE HAWKING TEMPERATURE

It is proposed that the luminosity, the information and the frequency of a freely falling light source to an event horizon appear to the observer resting with respect to the horizon to decrease exponentially with a time scale which depends on the temperature of the horizon. This conclusion is valid not only for the Schwarzschild black hole, but also for the other black holes, the Rindler horizon, and the deSitter horizon.