Yassine Sekhmani, Dhruba Jyoti Gogoi, Ratbay Myrzakulov, Giuseppe Gaetano Luciano and Javlon Rayimbaev
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引用次数: 0
摘要
在这项研究中,我们利用阴影分析法研究了四个黑洞的光学行为和热力学相结构。研究针对参数空间上的四种电荷配置情况。事实上,作为参数的电荷和参数空间都会影响黑洞阴影的几何形状,尤其是阴影的大小。我们还从 M87 和 Sgr A 黑洞阴影的观测结果中引入了对黑洞电荷的约束。此外,我们还表明电荷和参数空间对能量发射率的变化有非同小可的影响。有趣的是,我们发现了一些新情况,在这些情况下,蒸发速度较慢,从而导致黑洞的寿命大大延长。另一方面,我们探索了两种电荷配置情况下四个黑洞的相结构。研究结果表明,阴影和事件视界半径之间存在完美的相关性。事实上,这种相关性有助于发现阴影半径的相变。此外,用阴影分析法分析了微观结构,其行为与鲁普伊纳形式主义的普通情况类似。
In this work, we examine the optical behaviors and thermodynamic phase structures using shadow analysis for four black holes. The study is conducted for four cases of charge configurations on the parameter space . As a matter of fact, both the electric charge as a parameter and the parameter space affect the geometry of the black hole shadow, particularly the size of the shadow. We also introduce a constraint on the charge of the black hole from the observational results of the M87 and Sgr A shadow. Furthermore, we show that the electric charge and the parameter space have a non-trivial impact on the variation of the energy emission rate. Interestingly enough, we find novel scenarios in which the evaporation is slower, which causes the lifetime of the black holes to be considerably elongated. On the other side, the phase structure of four black holes is explored for two cases of electric charge configuration. The findings show a perfect correlation between the shadow and event horizon radii. This correlation is, in fact, helpful in discovering the phase transition in terms of the shadow radius. In addition, the microstructure is being analyzed in terms of shadow analysis, providing similar behavior to the ordinary situation of the Ruppeiner formalism.
期刊介绍:
Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.