论文标题
晚期PBH：超越CMB时代
Late-Forming PBH: Beyond the CMB era
论文作者
论文摘要
中间的质量黑洞范围，$ 10 \ simsim m _ {\ rm bh}^{}/m_ \ odot^{} \ lisssim 10^{5} $，长期以来一直为这种范围内的范围内的事件提供了诱人的可能性，因为它是某些范围内的范围，因为有些人是某些范围的事件。黑洞嵌入银河中心。然而，重组过程中源自PBH积聚的突出结合严重限制了中间质量PBH的质量分数。 We address this problem by proposing a formation scenario in which ``primordial" black holes form late in our cosmological history, beyond the CMB era, and bypassing this bound. During this crucial epoch, our population of compact objects exist as thermal balls supported by thermal pressure, which eventually cool to Fermi balls supported by degeneracy pressure and finally collapse to PBH. Our mechanism is a viable production method for both the mass gap Ligo-Virgo-Kagra检测和JWST对$ z> 10 $超级黑洞的观察，我们提出了当今时代以后PBH形成的可能性，我们认为这是\ textit {未来} PBH的范围PBH可以在霍金蒸发阈值下方形成，并将宇宙中的大部分物质转化为辐射。
The intermediate mass black hole range, $10\lesssim M_{\rm BH}^{}/M_\odot^{}\lesssim 10^{5} $, has long offered enticing possibilities for primordial black holes (PBH), with populations in this range postulated to be responsible for some of the black hole binary merger detected events as well as the existence of supermassive black holes embedded at galactic centers. However, a prominent bound derived from PBH accretion during recombination severely restricts the mass fraction of intermediate mass PBH. We address this problem by proposing a formation scenario in which ``primordial" black holes form late in our cosmological history, beyond the CMB era, and bypassing this bound. During this crucial epoch, our population of compact objects exist as thermal balls supported by thermal pressure, which eventually cool to Fermi balls supported by degeneracy pressure and finally collapse to PBH. Our mechanism is a viable production method for both the mass gap LIGO-VIRGO-KAGRA detections and the JWST observation of an early time $z>10$ supermassive black hole. Furthermore, we present the remarkable possibility of PBH formation after the present era, which we term \textit{future} PBH. Such a population would evade most, if not all bounds on the PBH mass spectrum in the literature and open up previously unthought-of possibilities. Light future PBH could form below the Hawking evaporation threshold and convert the bulk of the matter in the Universe into radiation.
