论文标题
薄积盘和带电的旋转dilaton黑洞
Thin accretion disks and charged rotating dilaton black holes
论文作者
论文摘要
Einstein-Maxwell-Dilaton理论是一种有趣的重力理论，用于在无发品定理的背景下研究标量领域。在这项工作中，我们考虑了静态带电的Dilaton，并在Einstein-Maxwell-Dilaton重力中被带电，缓慢旋转的Dilaton黑洞。我们使用Novikov-Thorne模型研究了此类黑洞周围薄磁盘中的积聚过程。获得了电磁通量，温度分布，能量转换效率以及薄磁盘的最内向的圆形轨道，并研究了DILATON和旋转参数的影响。对于静态和缓慢旋转的黑洞，将结果分别与Schwarzschild和Kerr的结果进行比较。
Einstein-Maxwell-dilaton theory is an interesting theory of gravity for studying scalar fields in the context of no-hair theorem. In this work, we consider static charged dilaton and charged, slowly rotating dilaton black holes in Einstein-Maxwell-dilaton gravity. We investigate the accretion process in thin disks around such black holes, using the Novikov-Thorne model. The electromagnetic flux, temperature distribution, energy conversion efficiency and also innermost stable circular orbits of thin disks are obtained and effects of dilaton and rotation parameters are studied. For the static and slowly rotating black holes the results are compared to that of Schwarzschild and Kerr, respectively.
