Hawking Radiation of Dirac Particles in a Variable-mass Kerr Black Hole

Abstract

Hawking effect of Dirac particles in a variable-mass Kerr space-time is investigated by using method of the generalized tortoise coordinate transformation. The location and the temperature of event horizon of the non-stationary Kerr black hole are derived. It is shown that the temperature and the shape of event horizon depend not only on the time but also on the polar angle. However, our results demonstrate that the Fermi-Dirac spectrum displays a new spin-rotation effect which is absent from that of Bose-Einstein distribution.

6 pages, revtex (12pt), no figure. Chin. Phys. Lett. 18 (2001) 485 (in press)

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