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Matter accretion onto higher-dimensional black holes with Dirac-Born-Infeld global defects via well known fluids
Nuclear Physics B ( IF 2.8 ) Pub Date : 2020-10-12 , DOI: 10.1016/j.nuclphysb.2020.115182
M. Umair Shahzad , Rafaqat Ali , Abdul Jawad

In this paper, we analyze the matter accretion onto higher dimensional black holes with Dirac-Born-Infeld (DBI) global defects by assuming general form of the recently proposed Hamiltonian and dynamical system for the fluid by considering the steady state flow. It is possible to obtain the analytic solution for isothermal equation of state and observe the heteroclinic flow in the presence of well-known fluids such as ultra-stiff, radiation, sub-relativistic and ultra-relativistic. A homoclinic-type accretion flow is observed for polytropic test fluid and the behavior for the adiabatic index 1<β=5/3<2 and β=7/3>2 is discussed. In addition, we investigate the behavior of energy density, radial velocity and mass accretion rate onto higher dimensional black holes with DBI global defects in the presence of above mentioned fluids.



中文翻译:

通过众所周知的流体将具有Dirac-Born-Infeld整体缺陷的高维黑洞物质积聚

在本文中,我们通过考虑最近提出的流体哈密顿量和动力学系统的一般形式,并考虑稳态流,分析了具有Dirac-Born-Infeld(DBI)整体缺陷的高维黑洞上的物质堆积。有可能获得等温状态方程的解析解,并在存在超硬,辐射,次相对论和超相对论等众所周知的流体的情况下观察异斜流。观察到多相测试流体的均斜型吸积流和绝热指数行为1个<β=5/3<2β=7/3>2讨论。此外,我们研究了在存在上述流体的情况下,具有DBI整体缺陷的高维黑洞的能量密度,径向速度和质量积聚率的行为。

更新日期:2020-10-29
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