论文标题
原子冷却原始光环的崩溃。 I.高莱曼妻子背景
The Collapse of Atomically-Cooled Primordial Haloes. I. High Lyman-Werner Backgrounds
论文作者
论文摘要
原始，原子冷却的光环可能是原始类星体形成的地点，因为原子冷却触发了快速的baryon倒塌，可以产生10 $^4 $ -10 $ -10 $^5 $ m $ m $ _ {\ odot} $黑洞种子。然而，没有数值模拟在这些光环中崩溃，因为形成超大质量的恒星和直接浪潮黑洞（DCBHS）所需的时间。现在，我们在原子冷却的光环中建模了Baryon塌陷，其中具有广泛的自旋参数和装配历史，以适合DCBH形成的时间。 $ \ sim $ 500 kyr后的积聚磁盘的碎片在这些光环中几乎无处不在，并且在大多数情况下会导致形成二进制或多个超级质量恒星系统。他们还证实，这些恒星形成DCBH所需的时间快速倒塌。我们的模拟表明，二进制甚至多个DCBH的形成是原始宇宙中的规则，而不是例外。
Pristine, atomically-cooled haloes may be the sites of primordial quasar formation because atomic cooling triggers rapid baryon collapse that can create 10$^4$ - 10$^5$ M$_{\odot}$ black hole seeds. However, no numerical simulation has ever followed the collapse of these haloes for the times required to form supermassive stars and direct-collapse black holes (DCBHs). We have now modeled baryon collapse in atomically-cooled haloes with a wide range of spin parameters and assembly histories for times that are sufficient for DCBH formation. Fragmentation of accretion disks after $\sim$ 500 kyr is nearly ubiquitous in these haloes and in most cases leads to the formation of binary or multiple supermassive stellar systems. They also confirm that rapid baryon collapse proceeds for the times required for these stars to form DCBHs. Our simulations suggest that binary or even multiple DCBH formation was the rule rather than the exception in the primordial Universe.
