A method exactly determining an event horizon and its temperature in a non-static space-time is proposed. Using the generalized Tortoise coordinate, we give exact location of event horizon and exact Hawking temperature for a general spherically symmetric evaporating black hole.
- ZHAO Zheng, DAI Xianxin. Hawking Radiation from a Non-static Black Hole[J]. CPL, 1991, 8(10): 548-550.