论文标题
宇宙中微子背景中的暗物质光环
Cored Dark Matter halos in the Cosmic Neutrino Background
论文作者
论文摘要
我们研究了DM与宇宙中微子背景之间的相互作用对银河系黑物质光晕演变的影响。从中微子到暗物质的能量转移会加热星系的中心并使其绞列。对于银河系的卫星星系等小星系，这种效果是有效的，我们可以将保守的限制对非相关的弹性散射横截面对$σ_{χν} \ Lessim 10^{ - 31} { - 31} {\ rm cm}^2 $ 0.1 kev deardrino和0.1 ev deardrino。
We study the impact of the interaction between DM and the cosmic neutrino background on the evolution of galactic dark matter halos. The energy transfer from the neutrinos to the dark matter can heat the center of the galaxy and make it cored. This effect is efficient for the small galaxies such as the satellite galaxies of the Milky Way and we can put conservative constraint on the non-relativistic elastic scattering cross section as $σ_{χν}\lesssim 10^{-31} {\rm cm}^2$ for 0.1 keV dark matter and 0.1 eV neutrino.
