论文标题
对暗物质光环中玻色子星星的形成和生长的新见解
New insights into the formation and growth of boson stars in dark matter halos
论文作者
论文摘要
这项工作通过使用非线性动力学数值方法来研究玻色子恒星及其周围微量簇的形成和生长。还首次考虑了完全动态的有吸引力和排斥性的自我互动。在纯重力的情况下，我们从数值上证明，霍洛斯内部玻色子恒星的生长会像以前猜想一样降低并饱和，并详细介绍其条件。使用Gross-Pitaevskii-Poisson方程包括自我互动。我们发现，在强烈的有吸引力的自我互动的情况下，玻色子恒星可能与先前的固定计算一致。在更强的耦合下，凝结片段。如预期的那样，排斥的自我互动会促进玻色子星形的形成，并导致较大半径的溶液。
This work studies the formation and growth of boson stars and their surrounding miniclusters by gravitational condensation using non-linear dynamical numerical methods. Fully dynamical attractive and repulsive self-interactions are also considered for the first time. In the case of pure gravity, we numerically prove that the growth of boson stars inside halos slows down and saturates as has been previously conjectured, and detail its conditions. Self-interactions are included using the Gross-Pitaevskii-Poisson equations. We find that in the case of strong attractive self-interactions the boson stars can become unstable and collapse, in agreement with previous stationary computations. At even stronger coupling, the condensate fragments. Repulsive self-interactions, as expected, promote boson star formation, and lead to solutions with larger radii.
