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 2302.02784gr-qcastro-ph.GA
收藏

规则黑洞周围的吸积盘

Accretion disk around regular black holes

Amin Rezaei Akbarieh, Minou Khoshragbaf, Mohammad Atazadeh

摘要:

规则黑洞是解决奇异性问题的重要途径,本文研究了Barnard和Hayward模型的吸积盘。为此,我们计算了黑洞的物理性质,包括辐射能、光度导数、温度和吸积质量到辐射的转换效率。结果表明,规则黑洞的非零自由参数使盘的最内层稳定圆轨道半径向较小的值移动。由于这种位移,我们看到辐射能、光度导数和温度的分布增加。我们还发现,巴氏和海沃德的黑洞是更有效地将质量转换为辐射比史瓦西。最后,我们将这两个黑洞的自由参数与旋转黑洞的自旋进行了比较,发现Barclay和Hayward黑洞可以模拟慢速旋转的Kerr黑洞。

英文摘要:

Regular black holes are crucially important as approaches to solving the singularity problem, and in this paper, the accretion disk of Bardeen and Hayward models have been studied. For this purpose, we calculated the physical properties of black holes, including radiant energy, luminosity derivative, temperature, and conversion efficiency of accretion mass into radiation. The obtained results show that the non-zero-free parameters of regular black holes cause the radius of the innermost stable circular orbit of the disk to shift to smaller values. As a result of this displacement, we saw an increase in the profiles of radiant energy, luminosity derivative, and temperature. We also find that Bardeen and Hayward's black holes are more efficient in converting mass to radiation than Schwarzschild. Finally, we compared the free parameter of these two black holes with the spin of the rotating black hole and found that the Bardeen and Hayward black holes can mimic the slowly rotating Kerr black hole.

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。

↑