论文标题
在等离子体存在的Kerr-Newman Spacetime的光学特性
Optical properties of Kerr-Newman spacetime in the presence of plasma
论文作者
论文摘要
我们已经在使用汉密尔顿 - 雅各比方法的血浆介质遮盖的Kerr-Newman黑洞的背景下研究了无效的测量学。已经研究了黑洞的电荷和等离子参数在有效势和通用光子轨道上的含义。此外，我们的讨论体现了黑洞的电荷，等离子体和带有自旋参数的重力施放的阴影的影响。我们检查了由于热辐射而从黑洞释放的能量，这仅取决于阴影的大小。考虑到弱场近似，还探索了无质量颗粒的角度。我们在一般相对论中与类似的黑洞并置了结果，尤其是Schwarzschild和Kerr Black Hole。
We have studied the null geodesics in the background of the Kerr-Newman black hole veiled by a plasma medium using the Hamilton-Jacobi method. The in uence of black hole's charge and plasma parameters on the effective potential and the generic photon orbits has been investigated. Furthermore, our discussion embodies the effects of black hole's charge, plasma and the inclination angle on the shadow cast by the gravity with and without the spin parameter. We examined the energy released from the black hole as a result of the thermal radiations, which exclusively depends on the size of the shadow. The angle of de ection of the massless particles is also explored considering a weak-field approximation.We present our results in juxtaposition to the analogous black holes in General Relativity, particularly the Schwarzschild and Kerr black hole.
