缓变动态Vaidya-Bonner黑洞的热辐射
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摘要
利用Vaidya-Bonner黑洞视界附近熵的体密度和Reissner-Nordstrm黑洞的辐射能通量,求得缓变动态Vaidya-Bonner黑洞视界附近的瞬时辐射能通量和瞬时辐射功率,发现缓变动态Vaidya-Bonner黑洞的热辐射满足广义StefanBoltzmann定律。利用热质点模型得到了距黑洞遥远的观测者接收到的辐射能通量与黑洞与观测者之间距离的平方成反比。当截断距离和薄膜厚度取定后,缓变动态Vaidya-Bonner黑洞视界附近标量场的瞬时辐射能通量和辐射功率不仅与黑洞的质量和电量有关,还与黑洞的视界变化率及薄层膜内辐射粒子的平均泄流速率有关,表明黑洞周围的引力场、电磁场以及视界的变化和辐射粒子种类均对黑洞的热辐射产生影响。
Using the entropy density near event horizon of Vaidya-Bonner black hole and the radiation energy flux of Reissner-Nordstrm,the radiation energy flux and the radiation power of slowly changing Vaidya-Bonner black hole have been gained.It is found that the thermal radiation of slowly changing Vaidya-Bonner black hole always satisfies the generalized Stefan-Boltzmann law.Using thermal particles model,the result that the radiation energy flux received by observer far away from the Vaidya-Bonner black hole is inversely proportional to the square of the distance between the observer and the black hole has been obtained.When the cut-off distance and the thin film thickness are both fixed,the radiation energy flux and the radiation power of the scalar field near the event horizon of slowly changing Vaidya-Bonner black hole are not only related to the black hole's mass and charge,but also related to the black hole changing rate of the event horizon and the average radial effusion velocity of radial particles.It states that the gravitational field,the electromagnetic field and the changing rate of the event horizon will affect the thermal radiation of Vaidya-Bonner black hole.
Using the entropy density near event horizon of Vaidya-Bonner black hole and the radiation energy flux of Reissner-Nordstrm,the radiation energy flux and the radiation power of slowly changing Vaidya-Bonner black hole have been gained.It is found that the thermal radiation of slowly changing Vaidya-Bonner black hole always satisfies the generalized Stefan-Boltzmann law.Using thermal particles model,the result that the radiation energy flux received by observer far away from the Vaidya-Bonner black hole is inversely proportional to the square of the distance between the observer and the black hole has been obtained.When the cut-off distance and the thin film thickness are both fixed,the radiation energy flux and the radiation power of the scalar field near the event horizon of slowly changing Vaidya-Bonner black hole are not only related to the black hole's mass and charge,but also related to the black hole changing rate of the event horizon and the average radial effusion velocity of radial particles.It states that the gravitational field,the electromagnetic field and the changing rate of the event horizon will affect the thermal radiation of Vaidya-Bonner black hole.
引文
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[2]Hawking S W.Particle creation by black hole[J].Commun MathPhys,1975,43(3):199-220.
[3]'t Hooft G.On the quantum structure of a black hole[J].NuclPhys B,1985,256:727-745.
[4]Parikh M K,Wilczek F.Hawking radiation as tunneling[J].Phys Rev Lett,2000,85(4):5024-50497.
[5]高长军,沈有根.三维BTZ黑洞的熵[J].中国科学G辑:物理学力学天文学,2003,33(6):561-566.
[6]刘成周.静态dilaton黑洞的信息熵[J].中国科学G辑:物理学力学,2007,37(2):146-156.
[7]张建华,孟庆苗,李传安.广义球对称带电蒸发黑洞的量子热效应与非热效应[J].物理学报,1996,45(2):177-184.
[8]孟庆苗.静态球对称黑洞Dirac场的Stefan-Boltzmann定律[J].物理学报,2003,52(8):2102-2104.
[9]MENG Q M,WANG S,JIANG J J,and DENG D L.Thermal radia-tion and nonthermal radiation of the slowly changing dynamic Kerr-Newman black hole.Chinese Physics B,2008,17(8):2811-2816.
[10]刘景伦.广义球对称带电静态黑洞的辐射能通量及辐射功率[J].山东大学学报(理学版),2010,26(9):1481-1486.
[11]孟一凡,孟庆苗.Reissner-Nordstrm黑洞Dirac场的辐射能通量和辐射功率[J].郑州大学学报(理学版),2011,58(11):7486-7490.
[12]邓德力.静态球对称Dilaton-Maxwell黑洞的辐射能通量及辐射功率[J].贵州大学学报(自然科学版),2010,27(2):23-25.
[13]邓德力.Schwarzschild黑洞的广义Stefan-Boltzmann定律[J].贵州大学学报(自然科学版),2010,27(4):22-24.
[14]孟庆苗.直线加速运动动态黑洞周围时空中标量粒子的能量[J].云南师范大学学报(自然科学版),2005,25(3):31-34.
[15]孟庆苗.动态黑洞的瞬时辐出度[J].物理学报,2005,54(1):471-474.
[16]宋太平,侯晨霞,史旺林.Vaidya-Bonner黑洞的熵[J].物理学报,2003,52(8):2102-2104.
[17]赵峥.黑洞的热性质与时空的奇异性[M].北京:北京师范大学出版社,1999,353-356,257.
[18]孟庆苗,蒋继建,王帅.静态球对称黑洞的热质点模型及辐射功率[J].物理学报,2009,58(11):7486-7490.