论文标题
原始黑孔伴随着超大的暗物质光环
Ultradense dark matter haloes accompany primordial black holes
论文作者
论文摘要
原始黑洞（PBHS）从大振幅初始密度波动形成，可能包括一些或全部的暗物质。如果PBH具有广泛扩展的质谱，或者在混合的PBH颗粒暗物质情境中，则产生PBH所需的极端密度波动也会导致形成在辐射时期内形成的大量深色Minihaloes，其内部密度可能具有$ 10^{12} $ $ m $ $ $ __ $ pc $^$ pc $ odot。我们开发了这些超高光环的形成的分析描述，并使用它来定量比较PBH和光环分布。仅贡献深色物质比例的PBH伴随着超高光环，这些光环仍然包括订单的分数。这些光环将由粒子暗物质或较小的PBH组成。这一发现极大地改变了许多PBH场景的预测，从而实现了各种新的观察测试。
Primordial black holes (PBHs) form from large-amplitude initial density fluctuations and may comprise some or all of the dark matter. If PBHs have a broadly extended mass spectrum, or in mixed PBH-particle dark matter scenarios, the extreme density fluctuations necessary to produce PBHs also lead to the formation of a much greater abundance of dark matter minihaloes that form during the radiation epoch with internal densities potentially of order $10^{12}$ M$_\odot$ pc$^{-3}$. We develop an analytic description of the formation of these ultradense haloes and use it to quantitatively compare PBH and halo distributions. PBHs that contribute only a per cent level fraction of the dark matter are accompanied by ultradense haloes that nevertheless comprise an order-unity fraction. These haloes would consist of either particle dark matter or much smaller PBHs. This finding significantly alters the predictions of many PBH scenarios, enabling a variety of new observational tests.
