静态球对称黑洞的热质点模型及辐射功率  

Thermal particles model and radiation power of static spherically symmetric black holes

作　　者：孟庆苗[1] 蒋继建[1] 王帅[1] 

机构地区：[1]菏泽学院物理系,菏泽274015

出　　处：《物理学报》2009年第11期7486-7490,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10773002);山东省教育厅科技计划项目(批准号:J07WJ49)资助的课题~~

摘　　要：利用静态球对称黑洞的热质点模型,研究了黑洞的热辐射规律,得到了当η取固有厚度时,对所有Schwarzschild黑洞,其辐射功率都相同,其视界处的辐射能通量与黑洞的质量的平方成反比,而距黑洞遥远的观察者所接收到的辐射能通量与观测者到黑洞的距离的平方成反比;Reissner-Nordstrm黑洞视界处的辐射能通量和辐射功率不仅与黑洞的质量有关,还与黑洞的电荷有关,而距黑洞遥远的观察者所接收到的辐射能通量,当截断的固有厚度η、黑洞的质量m和电荷Q取定后与观测者到黑洞之间的距离的平方成反比;极端Reissner-Nordstrm黑洞的辐射功率和辐射能通量为零.Using the thermal particles model of the static spherically symmetric black holes, the thermal radiation laws of the black hole are studied. When η takes the value of inherent thickness, the following results can be obtained. For all Schwarzschild black holes, the radiation power are the same, and the radiation energy flux on the event horizon is inversely proportional to the square of the black hole mass. While the radiation energy flux received by the observer far away from the black hole is inversely proportional to the square of the distance between the observer and the black hole. For Reissner-Nordstrm black holes, the radiation energy flux and the radiation power on the event horizon are not only related to the black hole mass, but also the charge of black holes. For fixed values of η, m and Q, the radiation energy flux received by the observer is also inversely proportional to the square of the distance between the observer and the black hole. For extreme Reissner-Nordstrom black holes, the radiation energy flux and the radiation power are all equal to zero.

关 键 词：静态球对称黑洞 热质点模型 辐射功率 辐射能通量 

分 类 号：P145.8[天文地球—天体物理]