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arXiv 2606.03414astro-ph.COgr-qchep-th
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隐藏扇区吸积与高红移超大质量黑洞的翘曲黑弦种子

Hidden-sector accretion and warped black-string seeds for high-redshift supermassive black holes

Jagiellonian University(雅盖隆大学)

Chunshan Lin

AI总结:

提出通过隐藏扇区吸积形成五维黑洞弦,其与我们的膜相交产生黑洞种子,从而解释高红移超大质量黑洞的起源。

摘要:

最早的大质量黑洞通常被讨论为重型重子种子、原初黑洞或超爱丁顿吸积。我们发展了一种不同的可能性:隐藏供体膜上的致密物体形成一个共同的五维视界,其与我们的膜的交集被观测为黑洞种子。供体侧物质吸积到共同的五维视界上,增加视界半径,从而扩大其与我们的膜的交集。结果,生活在我们膜上的观测者推断的引力质量增长。我们将五维几何切片到每个膜上,并表明在我们的膜上诱导的外部在领头阶具有通常的史瓦西/瓦迪亚单极形式,在局域化供给分支中有次领头的外尔/卡鲁扎-克莱因修正。我们构建了一个满足规则体方程和膜连接条件的微扰梯度展开解。物质扇区满足正质量增长下的零能量条件。研究了线性扰动稳定性,对于视界半径远大于膜间尺度的超大质量种子,危险的长波模式不存在。主要的观测后果是:欠发达宿主中的超大质量高红移黑洞、相对于发光吸积预算的隐藏质量增长、LISA波段的重种子并合,以及原初黑洞解释所需的原初化石的缺失。

英文摘要:

The earliest massive black holes are often discussed in terms of heavy baryonic seeds, primordial black holes, or super-Eddington accretion. We develop a different possibility: a compact object on a hidden donor brane forms a common five-dimensional horizon whose intersection with our brane is observed as a black-hole seed. Donor-side matter accretes onto the common five-dimensional horizon, increases the horizon radius, and consequently enlarges its intersection with our brane. As a result, the gravitational mass inferred by an observer living on our brane grows. We slice the five-dimensional geometry onto each brane and show that the induced exterior on our brane has the usual Schwarzschild/Vaidya monopole form at leading order, with subleading Weyl/Kaluza-Klein corrections in the localized-feeding branch. We construct a perturbative gradient-expansion solution satisfying the regular bulk equations and brane junction conditions. The matter sector satisfies the null energy condition for positive mass growth. The linear perturbation stability is investigated, and for supermassive seeds with horizon radius far larger than the interbrane scale, the dangerous long-wavelength mode is absent. The primary observational consequences are overmassive high-redshift black holes in underdeveloped hosts, hidden mass growth relative to the luminous accretion budget, LISA-band heavy-seed mergers, and the absence of primordial fossils required by primordial-black-hole explanations.

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。

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