Vaidya-Bonner黑洞的瞬时辐出度  

Instantaneous Radiant Exitance of the Vaidya-Bonner Black Hole

作　　者：徐兴磊[1] 孟庆苗[1] 

机构地区：[1]菏泽学院物理系,山东菏泽274015

出　　处：《云南师范大学学报（自然科学版）》2006年第5期45-47,共3页Journal of Yunnan Normal University:Natural Sciences Edition

摘　　要：利用Vaidya-Bonner黑洞视界面附近的熵密度,导出黑洞的瞬时辐出度,得到了任一时刻黑洞的瞬时辐出度总是正比于黑洞视界温度的四次方的结论。导出的广义Stefan-Boltzmann系数不再是一个恒量,而是一个与黑洞视界的变化率、黑洞视界面附近的时空度规及黑洞的吸收与辐射系数有关的一个动比例系数。揭示了黑洞周围的引力场与其热辐射之间存在着必然的内在联系。using entropy density near event horizon of the Vaidya--Bonner black hole. the instantaneous radiant exitance is calculated, and a conclusion that the instantaneous radiant exitance of black hole at any time is always proportional to quartic power of temperature of the event horizon of black hole isabtained. It is found that the factor of generalized Stefan--Boltzmann＇s is no longer a constant, but a dynamic proportional coefficient related to the rate of a change of event horizon and the structure of space--time near evtnt horizon and the radiation absorption coefficient of black hole. It has been shown that a inner ralation between the gravitational field around black hole and its thermal radiation must exist.

关 键 词：黑洞 视界温度 薄膜模型 瞬时辐出度 

分 类 号：P145.8[天文地球—天体物理]