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首页> 外文会议>Proceedings of the 32nd International Cosmic Ray Conference >Segue 1: the best dark matter candidate dwarf galaxy surveyed by MAGIC
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Segue 1: the best dark matter candidate dwarf galaxy surveyed by MAGIC

机译：话题1：MAGIC调查的最佳暗物质候选矮星系

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摘要

Despite the interest in Dark Matter (DM) searches is currently more focused on underground experiments, asignature of DM annihilation/decay in gamma-rays from space would constitute a smoking gun for its identification. Inthis contribution, we start with a brief review of the efforts of the ground-based MAGIC Cherenkov telescopes systemto detect DM signatures from dwarf satellite galaxies orbiting the Milky Way halo. We then present the recent survey ofSegue 1, considered by many as possibly the most DM dominated satellite galaxy known in our galaxy. No significantgamma-ray emission was found above the background in around 30 hours of observation. This is the largest survey evermade on a single dwarf by Cherenkov telescopes. We present a novel analysis that fully takes into account the spectralfeatures of the gamma-ray spectrum of specific DM models in a Supersymmetric scenario. We also discuss the prospectsof detection after the Fermi observation of similar objects at lower energies.
机译：尽管目前对暗物质（DM）搜索的兴趣更多地集中在地下实验上，但来自太空的伽马射线中的DM hil灭/衰变的特征仍将构成识别它的烟枪。在此贡献中，我们首先简要回顾一下地面MAGIC Cherenkov望远镜系统为探测绕银河系光环运行的矮卫星星系的DM签名所做的努力。然后，我们提出对Segue 1的最新调查，该调查被许多人认为是我们银河系中已知的最受DM主导的卫星星系。在大约30小时的观察中，没有发现高于背景的伽马射线发射。这是切伦科夫望远镜在单个小矮星上进行的最大规模的测量。我们提出了一种新颖的分析方法，该分析方法充分考虑了超对称情况下特定DM模型的伽马射线光谱的光谱特征。我们还讨论了在较低能量的费米观测相似物体之后的探测前景。

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