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Effect of quintessence on geodesics and Hawking radiation of Schwarzschild black hole

机译:Quintessence对Schwarzschild黑洞大声辐射的影响

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摘要

We study the timelike geodesics and the greybody radiation of the Schwarzschild black hole surrounded by quintessence field. Quintessence field is one of the highly plausible models for the dark energy. The effective potential along with the structure of the possible orbits for test particles in view of the various values of quintessence parameter are analyzed in detail. The exact solution of radial timelike geodesics for a test particle is obtained. Remarkably, it is shown that an increase in quintessence parameter decelerates the particles following the radial timelike geodesics so that the particles reach the singularity slower than the bare Schwarzschild case. The circular orbits of the test particles in case of non-radial geodesics are studied. We also discuss the Lyapunov exponent and the effective force acting on the particle in the presence of quintessence field. The effect of quintessence parameter on the greybody factor is also investigated. We consider the Miller-Good transformation method to compute the greybody factor and therefore to discuss how the Hawking radiation is affected from the quintessence field.
机译:我们研究了由Quintessence领域包围的Schwarzschild黑洞的时间般的测量仪和灰体辐射。 Quintessence领域是黑能的高度合理的模型之一。详细地分析了考虑到测试颗粒的可能轨道结构的有效电位。获得了径向时间尺寸测量粒子的精确解。值得注意的是,示出Quintessence参数的增加在径向时代的大地测量仪之后使粒子减速,使得颗粒达到奇异性慢于裸施瓦茨柴氏壳。研究了在非径向测地测学的情况下测试颗粒的圆形轨道。我们还讨论了Lyapunov指数和在Quintessence领域存在的粒子上的有效力量。还研究了Quintessence参数对灰体因子的影响。我们考虑米勒 - 良好的转换方法来计算灰体因子,从而讨论尖叫辐射如何影响Quintessence领域。

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  • 来源
    《European Physical Journal Plus》 |2020年第2期|共21页
  • 作者单位

    Al Hussein Bin Talal Univ Dept Phys POB 20 Maan 71111 Jordan;

    Eastern Mediterranean Univ Arts &

    Sci Fac Dept Phys North Cyprus Via Mersin 10 Famagusta Turkey;

    Eastern Mediterranean Univ Arts &

    Sci Fac Dept Phys North Cyprus Via Mersin 10 Famagusta Turkey;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

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