史瓦西黑洞外中微子主导吸积盘的质量  

Mass of the Neutrino-Dominated Accretion Disks outside the Schwarzschild Black Holes

作　　者：甘亮勤[1,2] 程再军[1,2] 林一清[1,2] GAN Liangqin CHENG Zaijun LIN Yiqing(Fujian Provincial Key Laboratory of Optoelectronic Technology, Xiamcn 361024, China School of Optoeclectronics ＆ Communication Engineering, Xiamen University of Technology, Xiamen 361024, China)

机构地区：[1]福建省光电技术与器件重点实验室,福建厦门361024 [2]厦门理工学院光电与通信工程学院,福建厦门361024

出　　处：《厦门理工学院学报》2017年第3期47-50,共4页Journal of Xiamen University of Technology

基　　金：国家自然科学基金项目(61504113);福建省中青年教师教育科研项目(JA15378)

摘　　要：选取2005年1月—2016年12月期间具有X射线余辉观测的16个γ射线暴的短暴数据样本,估算史瓦西黑洞外中微子主导吸积盘的质量,发现大部分盘的质量远大于模拟的最大值。这个结果表明,短暴要求更大质量的吸积盘,即史瓦西黑洞的吸积不足以提供多数短暴能量,短暴爆发所需要的能量可能需要黑洞的自旋或其他的电磁动力学过程来提供。We observed 16 short GRBs with X ray afterglow from January 2005 to December 2006 to estimate the mass of the neutrino-dominated accretion disks outside the Schwarzsehild black holes and found that the mass of most disks far exceeding the limit in simulations. The results show that most of the short GRBs require massive disks, which means that the accretion of the Schwarzschild black hole is not sufficient to power most short GRBs. The energy to power short GRBs may be provided by the spin of a black hole or other magnetohydrodynamic processes.

关 键 词：吸积 吸积盘 史瓦西黑洞 Γ射线暴 中微子 

分 类 号：P145.8[天文地球—天体物理]