标题： 银河系中心超大质量黑洞对暗物质的吸收：边界条件的作用 显示英文标题

标题： Absorption of dark matter by a supermassive black hole at the Galactic center: role of boundary conditions

摘要： 分析了银河系中心暗物质分布的演化，这是由银河系核球恒星的引力散射和核球中心超大质量黑洞吸收共同引起的。 重点放在黑洞的边界条件上。 结果表明，其形式取决于暗物质粒子的能量。 计算了修正后的黑洞处暗物质粒子通量。 暗物质吸收量的估算表明，暗物质在黑洞总质量中所占的比例可能很大。 计算了核球中心部分的暗物质密度。 结果表明，最近观测到的银河系中心伽马射线辐射可以归因于具有这种密度的暗物质湮灭。 显示英文摘要

摘要： The evolution of the dark matter distribution at the Galactic center is analyzed, which is caused by the combination of gravitational scattering on Galactic bulge stars and absorption by a supermassive black hole at the center of the bulge. Attention is focused on the boundary condition on the black hole. It is shown that its form depends on the energy of dark matter particles. The modified flux of dark matter particles onto the black hole is calculated. Estimates of the amount of dark matter absorbed show that the fraction of dark matter in the total mass of the black hole may be significant. The density of dark matter at the central part of the bulge is calculated. It is shown that recently observed gamma radiation from the Galactic center can be attributed to the annihilation of dark matter with this density.