arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2002.00589gr-qc
收藏

Gibbons-Maeda-Garfinkle-Horowitz-Strominger带电黑洞周围的吸积盘

Accretion disks around the Gibbons-Maeda-Garfinkle-Horowitz-Strominger charged black holes

R. Kh. Karimov, R. N. Izmailov, Amrita Bhattacharya, K. K. Nandi

摘要:

令人惊讶的是,杂合弦论的Gibbons-Maeda-Garfinkle-Horowitz-Strominger(GMGHS)黑洞周围吸积盘(\textit{à la} Page和Thorne)的发射率特性尚未被研究。为了填补这一空白,在文献中,我们研究了薄吸积盘周围的这些黑洞在爱因斯坦和弦框架使用Page-Thorne模型的发射率特性。为了说明这一点,我们选择了一个恒星大小的球对称黑洞作为玩具模型,并发现,虽然辐射率特性与Reissner-Nordström和Schwarzschild黑洞的辐射率特性没有显着差异,但在更高频率下,它们在对应于裸奇点和虫洞的GMGHS极端极限处显着不同。这些差异提供了一种新的方式,从观察的角度来推测不同类型的对象。

英文摘要:

It seems surprising that the emissivity properties of the accretion disk (\textit{à la} Page and Thorne) surrounding the Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) black holes of heterotic string theory have not yet been studied. To fill this gap in the literature, we study the emissivity properties of the thin accretion disks around these black holes both in the Einstein and in the string frame using the Page-Thorne model. For illustration, we choose as a toy model a stellar-sized spherically symmetric black hole and find that, while the emissivity properties do not significantly differ from those of Reissner-Nordström and Schwarzschild black holes, they remarkably differ at GMGHS extreme limits corresponding to naked singularity and wormhole at higher frequencies. These differences provide a novel way to speculatively conclude about different types of objects from the observational point of view.

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。

↑