论文标题
原始黑洞周围的深色minihalos中的斧头恒星成核
Axion Star Nucleation in Dark Minihalos around Primordial Black Holes
论文作者
论文摘要
我们考虑了包括QCD和弦轴在内的一般轴模模型，其中PQ对称性在膨胀之前或期间被打破。假设轴突是暗物质的主要成分，我们通过重力玻色子凝结在原始黑洞周围围绕黑孔进行了轴突之星形成。我们确定Minihalos在星系形成之前生产轴心恒星的条件。今天，我们期望最多$ \ sim 10^{17} $（$ \ sim 10^9 $）轴心星在太阳周围100 parsecs的半径上，对于QCD（字符串）轴轴。
We consider a general class of axion models, including the QCD and string axion, in which the PQ symmetry is broken before or during inflation. Assuming the axion is the dominant component of the dark matter, we discuss axion star formation in virialized dark minihalos around primordial black holes through gravitational Bose-Einstein condensation. We determine the conditions for minihalos to kinetically produce axion stars before galaxy formation. Today, we expect up to $\sim 10^{17}$ ($\sim 10^9$) axion stars in a radius of 100 parsecs around the Sun for the case of the QCD (string) axion.
