Taking into consideration the radiation particle retroaction with the total energy, angular momentum and charge of spacetime conservation, using the Damour-Ruffini method, the Hawking radiation of particle from Kerr-Newman black hole are re-investigated. It is found that the Hawking radiation is not exactly pure thermal. Our conclusion not only contains the impact for the energy of the radiation particle, but also contains the impact for the angular momentum of particle to the angular momentum of black hole. The result is consistent with the works of Parikh and Wilczek, and satisfies the unitary theory of quantum mechanics.
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