arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1610.01129gr-qc
收藏

整体单极Reissner-Nordstrom-(anti)-de Sitter黑洞的吸积

Accretion on Reissner-Nordstrom-(anti)-de Sitter Black Hole with Global Monopole

Ayyesha K. Ahmed, Ugur Camci, Mubasher Jamil

摘要:

本文研究了具有整体负电荷的Reissner-Nordström反德西特黑洞的吸积。利用等温和多方状态方程讨论了黑洞上稳态、球对称、非旋转吸积的一般解。在等温流动的情况下,我们考虑了一些特定的流体,并推导出它们的解决方案,以及在音速点。然而,在多变流体的情况下,我们只计算一般表达式,因为多变测试流体不存在全局(邦迪)解。此外,还研究了流体对质量吸积速率的影响。此外,大的吸积参数$β$极大地抑制了最大吸积速率。

英文摘要:

In this paper, we investigate the accretion on the Reissner-Nordström anti-de-Sitter black hole with global monopole charge. We discuss the general solutions of accretion using the isothermal and polytropic equations of state for steady state, spherically symmetric, non-rotating accretion on the black hole. In the case of isothermal flow, we consider some specific fluids and derive their solutions at the sonic point as well. However, in case of polytropic fluid we calculate the general expressions only, as there exists no global (Bondi) solutions for polytropic test fluids. In addition to this, the effect of fluid on the mass accretion rate are also studied. Moreover, the large monopole parameter $β$ greatly suppresses the maximum accretion rate.

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。

↑