标题： 银河系中心的暗物质称量 显示英文标题

标题： Weighing of the Dark Matter at the Center of the Galaxy

摘要： 基于对银河系中心超大质量黑洞附近暗物质总质量的测量方法，该方法基于对快速S0恒星轨道的非相对论进动观测以及暗物质粒子湮灭信号的约束，已进行了讨论。 在假设暗物质密度呈幂律分布的前提下，得到了进动角的解析表达式。 在不久的将来，现代望远镜将能够测量S0恒星轨道的进动或获得其强有力的限制。 考虑到Sommerfeld效应，已经计算了为解释由于暗物质粒子湮灭导致的伽马射线观测过剩所需的暗物质质量。 显示英文摘要

摘要： A promising method for measuring the total mass of the dark matter near a supermassive black hole at the center of the Galaxy based on observations of nonrelativistic precession of the orbits of fast S0 stars together with constraints on the annihilation signal from the dark matter particles has been discussed. An analytical expression for the precession angle has been obtained under the assumption of a power-law profile of the dark matter density. In the near future, modern telescopes will be able to measure the precession of the orbits of S0 stars or to obtain a strong bound on it. The mass of the dark matter necessary for the explanation of the observed excess of gamma radiation owing to the annihilation of the dark matter particles has been calculated with allowance for the Sommerfeld effect.