论文标题
与自我互动的暗物质播种超大的黑孔：与重子的统一场景
Seeding Supermassive Black Holes with Self-Interacting Dark Matter: A Unified Scenario with Baryons
论文作者
论文摘要
观察结果表明，当宇宙仅为当前年龄的$ 6 \％$时，存在质量为$ \ sim10^9 m_ \ odot $的超级质量黑洞（SMBH）。我们提出了一个场景，即一种自我互动的暗物质光环会经历重生不稳定，其中央区域倒入了种子黑洞。巴元中的巴元的存在可能会显着加速光环和缩短倒塌时间刻度的重生体验。中央光环可以通过自我互动引起的粘度消散其角动量残留物。主机光环必须处于密度波动的高尾巴上，这意味着在这种情况下，高$ z $ smbhs预计很少见。我们进一步得出了触发崩溃区域的一般相对论不稳定性的条件。我们的结果表明，自我相互作用的暗物质可以为当今星系中的各种暗物质分布以及Redshifts $ Z \ SIM6-7 $的SMBH的起源提供统一的解释。
Observations show that supermassive black holes (SMBHs) with a mass of $\sim10^9 M_\odot$ exist when the Universe is just $6\%$ of its current age. We propose a scenario where a self-interacting dark matter halo experiences gravothermal instability and its central region collapses into a seed black hole. The presence of baryons in protogalaxies could significantly accelerate the gravothermal evolution of the halo and shorten collapse timescales. The central halo could dissipate its angular momentum remnant via viscosity induced by the self-interactions. The host halo must be on high tails of density fluctuations, implying that high-$z$ SMBHs are expected to be rare in this scenario. We further derive conditions for triggering general relativistic instability of the collapsed region. Our results indicate that self-interacting dark matter can provide a unified explanation for diverse dark matter distributions in galaxies today and the origin of SMBHs at redshifts $z\sim6-7$.
