Acceleration of a static observer near the event horizon of a static isolated black hole

Details Acceleration of a static observer near the event horizon of a static isolated black hole Acceleration of a static observer near the event horizon of a static isolated black hole

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981amjph..49..412d&link_type=abstract

American Journal of Physics, Volume 49, Issue 5, pp. 412-416 (1981).

Physics

11

Black Holes, Relativity And Gravitation

Scientific paper

The magnitude of the proper acceleration of a static observer (or test particle) in a static, isolated, spherically symmetric space-time region is compared with the Newtonian result including the situation in the interior of a perfect-fluid star. The calculation shows that the proper acceleration diverges on the event horizon of a spherically symmetric black hole. The 'surface gravity' of a spherically symmetric black hole, as used in descriptions of the Hawking radiation, is then explicitly related to the accelerations of such static observers, thus providing a simple physical interpretation of the surface gravity and illustrating the global (nonlocal) nature of the event horizon. The calculations are presented in the SI physical equations used almost exclusively by many students and teachers of physics.

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