论文标题
中微子点源搜索暗物质尖峰
Neutrino point source searches for dark matter spikes
论文作者
论文摘要
我们银河系中黑洞周围的任何暗物质尖峰都是严重的暗物质an灭的部位，导致可能可检测到的中微子信号。在本文中，我们研究了$ 10-10^5 m_ \ odot $黑孔与在Minihalos早期形成的暗物质尖峰相关的黑孔，鉴于Antares和IceCube探测器的中微子数据，如今仍在我们的银河系中存在。在天空的各个区域中，我们确定了与太阳系的最小距离，必须将暗物质尖峰的距离远离，以便未被检测到各种代表性的暗物质灭绝通道的中微子点源。鉴于这些对银河系中暗物质尖峰的分布的限制，我们对早期Minihalos中第一代恒星形成的形成很大 - 比Fermi Gammi-ray射线空间望远镜数据中的伽马射线搜索的限制更强。本文考虑的较大的黑洞可能会出现，因为暗物质燃料用尽了黑色星星的残余物；因此，可以使用中微子观测来限制黑恒星的性质。对于较重的烟灰质而言，极限尤其强大。对于Wimp Masses $ \ sim 5 \，$ TEV，我们表明$ \ Lessim 10 \％$的Minihalos可以容纳第一星，这些星星崩溃到BHS大于$ 10^3 m_ \ odot $。
Any dark matter spikes surrounding black holes in our Galaxy are sites of significant dark matter annihilation, leading to a potentially detectable neutrino signal. In this paper we examine $10-10^5 M_\odot$ black holes associated with dark matter spikes that formed in early minihalos and still exist in our Milky Way Galaxy today, in light of neutrino data from the ANTARES and IceCube detectors. In various regions of the sky, we determine the minimum distance away from the solar system that a dark matter spike must be in order to have not been detected as a neutrino point source for a variety of representative dark matter annihilation channels. Given these constraints on the distribution of dark matter spikes in the Galaxy, we place significant limits on the formation of the first generation of stars in early minihalos -- stronger than previous limits from gamma-ray searches in Fermi Gamma-Ray Space Telescope data. The larger black holes considered in this paper may arise as the remnants of Dark Stars after the dark matter fuel is exhausted; thus neutrino observations may be used to constrain the properties of Dark Stars. The limits are particularly strong for heavier WIMPs. For WIMP masses $\sim 5 \,$TeV, we show that $\lesssim 10 \%$ of minihalos can host first stars that collapse into BHs larger than $10^3 M_\odot$.
