New Tortoise Coordinate and Hawking Radiation of Dirac Particles in a Non-stationary Kerr-Newman Black Hole |
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Authors: | Xiao-Gang Lan |
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Institution: | (1) Institute of Theoretical Physics, China West Normal University, Nanchong, Sichuan, 637002, People’s Republic of China |
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Abstract: | The Hawking effect of Dirac particles in a non-stationary Kerr-Newman black hole is investigated using an improved Damour-Ruffini
method with a new tortoise coordinate transformation. In contrast with the old tortoise coordinate, the new one satisfies
the dimensional requirement. It is interesting to note that the Hawking emission spectrum remains a blackbody one with a correction
term ξ existing in the Hawking temperature. Compared with the old tortoise coordinate transformation, our results appears more accurate
and reliable. |
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Keywords: | |
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