论文标题
用矮星系加热来约束原始黑洞
Constraining Primordial Black Holes with Dwarf Galaxy Heating
论文作者
论文摘要
在恒星形成之前，在早期宇宙中形成的黑洞可以作为暗物质存在，也有助于在引力波中观察到的黑洞合并事件。我们通过考虑PBH与星际培养基的相互作用，对原始黑洞（PBH）的丰度设定了新的限制，从而导致气体加热。我们检查通用加热机制，包括积聚磁盘，动力学摩擦和磁盘流出的发射。利用狮子座矮星系中的数据，我们对质量范围内的PBH的丰度设定了一个新的限制，$ \ MATHCAL {O}（1）m _ {\ odot} -10^7 m _ {\ odot} $，与最近检测到的Gravitational Wave simelmed simelmed symed symed bhh相关。
Black holes formed in the early universe, prior to the formation of stars, can exist as dark matter and also contribute to the black hole merger events observed in gravitational waves. We set a new limit on the abundance of primordial black holes (PBHs) by considering interactions of PBHs with the interstellar medium, which result in the heating of gas. We examine generic heating mechanisms, including emission from the accretion disk, dynamical friction, and disk outflows. Using the data from the Leo T dwarf galaxy, we set a new cosmology-independent limit on the abundance of PBHs in the mass range $\mathcal{O}(1) M_{\odot}-10^7 M_{\odot}$, relevant for the recently detected gravitational wave signals from intermediate-mass BHs.
