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THE DISTRIBUTION OF DARK MATTER IN THE MILKY WAY GALAXY

机译:银河系中的暗物质分布

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A wealth of recent observational studies shows the dark matter in the Milky Way to have the following fundamental properties: 1) there is no detectable dark matter associated with the Galactic disk - the dark matter is distributed in a purely halo distribution with local volume density near the Earth ≈ 0.3GeV/cc ≡ 0.01M_⊙pc~(-3); 2) The stellar mass function is both universal and convergent at low masses - there is no significant very low luminosity baryonic dark matter associated with stellar light. Fundamentally, dark mass does NOT follow light. 3) The smallest scale length on which dark matter is clustered is in the Milky Way's satellite dwarf Spheroidal galaxies, where dark matter has a characteristic length scale ~1kpc = 10~(20)m and mass density ~0.05M_⊙pc~(-3) ≡ 1.5GeV/cc.
机译:最近的一项丰富的观察性研究表明,银河系中的暗物质具有以下基本性质:1)没有与银椎体盘相关的可检测的暗物质 - 暗物质分布在纯粹的光环分布中,靠近局部体积密度地球≈0.3gev/cc≥0.01m_pc〜(-3); 2)恒星质量函数在低质量下是通用和会聚 - 与恒星光有关的无显着的非常低的亮度辐射暗物质。从根本上,暗肿块不遵循光。 3)聚集暗物质的最小规模长度是银河系的卫星矮状球状星系,其中暗物质具有特征长度〜1kpc = 10〜(20)m和质量密度〜0.05m_pc〜( - 3)≡1.5GEV / CC。

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