arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.13115gr-qc
收藏

Rastall引力下具有非线性电动力学源的黑洞的拟正规模

Quasinormal Modes of Black Holes with Non-Linear-Electrodynamic sources in Rastall Gravity

Dhruba Jyoti Gogoi, Umananda Dev Goswami

摘要:

对广义相对论(GR)的一个值得注意的修正是拉斯特尔引力。我们研究了这种引力中引力波的偏振模式。我们发现,在离巨阱源很远的地方,Rastall引力的行为与GR完全相同,即理论上只得到两个巨阱的无质量张量偏振模。之后,我们将研究扩展到了非线性电动源存在下的Rastall引力中黑洞的准正规模。本文研究了在存在电动力源的情况下,宇宙场、尘埃场、幻影场、精粹场和辐射场对准正规模的影响。此外,我们还检验了拟正规模与Rastall参数$λ$、黑洞结构常数$N_s$和黑洞电荷$Q$的依赖关系.研究表明,在一定条件下,具有非线性电动力学源的黑洞的准正规模与一般带电黑洞的准正规模存在显著的偏差.此外,黑洞的行为以及由此产生的拟正规模依赖于所考虑的周围场的类型。

英文摘要:

One of the notable modifications of General Relativity (GR) is the Rastall gravity. We have studied the polarization modes of Gravitational Waves (GWs) in this gravity. It is found that at a very far distance away from the source of GWs, Rastall gravity behaves identically to GR. That is, we get only two massless tensor polarization modes of GWs in the theory. Afterwards, we have extended our study to quasinormal modes of black holes in Rastall gravity in presence of non-linear electrodynamic sources. Here the impacts of cosmological field, dust field, phantom field, quintessence field and radiation field on the quasinormal modes in presence of electrodynamic sources have been investigated. Apart from this, we have also checked the dependency of quasinormal modes with the Rastall parameter $λ$, black hole structural constant $N_s$ and charge of the black hole $Q$. The study shows that the quasinormal modes corresponding to the black hole with non-linear electrodynamic sources show significant deviations from a general charged black hole in Rastall gravity under certain conditions. Further, the behaviour of black holes and hence the quasinormal modes depend on the type of surrounding field considered.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑