INTERACTION OF HAWKING RADIATION WITH STATIC SOURCES OUTSIDE A SCHWARZSCHILD BLACK-HOLE - ART. NO. 104021

We show that the response rate of (i) a static source interacting with Hawking radiation of a massless scalar held in Schwarzschild spacetim e (with the Unruh vacuum) and that of (ii) a uniformly accelerated sou rce with the same proper acceleration in Minkowski spacetime (with the Minkowski vacuum) are equal. We show that this equality will not hold if the Unruh vacuum is replaced by the Hartle-Hawking Vacuum. It is v erified that the source responds to the Hawking radiation near the hor izon as if it were at rest in a thermal bath in Minkowski spacetime wi th the same temperature. It is also verified that the response rate in the Hartle-Hawking vacuum approaches that in Minkowski spacetime with the same temperature far away from the black hole. Finally, we compar e our results with others in the literature. [S0556-2821(98)02922-1].