起源于引力场的Vaidya-Bonner-de Sitter黑洞的瞬时辐出度

利用Vaidya-Bonner-de S itter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四次方的结论。导出的广义Stefan-Boltzm ann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。

Instantaneous radiant emittance of theVaidya-Bonner de Sitter black hole arising from gravitational fields

Using entropy density near event horizon of the Vaidya-Bonner-de Sitter black hole,the instantaneous radiant emittance is calculated out,and a conclusion that the instantaneous radiant emittance of black hole at any time is always proportional to quartic power of temperature of the event horizon of black hole is obtained.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 event horizon and the radiation absorption coefficient of black hole.It has been shown that a inner relation between the gravitational field around black hole and its thermal radiation must exist.