Thermal radiation and nonthermal radiation of the slowly changing dynamic Kerr--Newman black hole |
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Authors: | Meng Qing-Miao Wang Shuai Jiang Ji-Jian and Deng De-Li |
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Institution: | Department of Physics, Heze University, Heze
274015,
China |
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Abstract: | Using the related formula of dynamic black hole, we have calculated
the instantaneous radiation energy density of the slowly changing
dynamic Kerr--Newman black hole. It is found that the instantaneous
radiation energy density of a black hole is always proportional to
the quartic of the temperature of the event horizon in the same
direction. By using the Hamilton--Jacobin equation of scalar particles in
the curved spacetime, the spontaneous radiation of the slowly
changing dynamic Kerr--Newman black hole is studied. The energy
condition for the occurrence of the spontaneous radiation is
obtained. |
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Keywords: | event horizon thin film model instantaneous radiation energy density nonthermal radiation |
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