Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-12-25
Int.J.Mod.Phys.A24:1889-1899,2009
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
This paper has been withdrawn. Paper was revised and will appear in International Journal of Modern Physics A
Scientific paper
10.1142/S0217751X09043274
Quantum radiative characteristics of slowly varying nonstationary Kerr-Newman black holes are investigated by using the method of generalized tortoise coordinate transformation. It is shown that the temperature and the shape of the event horizon of this kind of black holes depend on the time and the angle. Further, we reveal a relationship that is ignored before between thermal radiation and non-thermal radiation, which is that the chemical potential in thermal radiation spectrum is equal to the highest energy of the negative energy state of particles in non-thermal radiation for slowly varying nonstationary Kerr-Newman black holes. Also, we show that the deduced general results can be degenerated to the known conclusion of stationary Kerr-Newman black holes.
Hua Jia-Chen
Huang Yong-Chang
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