论文标题
特刊“光晕子结构在伽玛 - 射线暗物质搜索中的作用”的覆盖层
Overlay of the Special Issue 'The Role of Halo Substructure in Gamma-Ray Dark Matter Searches'
论文作者
论文摘要
当今一个重要的开放问题是对暗物质（DM）Halo子结构可能对DM搜索具有的相关性的理解。在标准的宇宙学框架中，预测Subhalos在较大的光环（即我们的星系）中大大含量丰富，并被认为首先形成并随后合并以形成较大的结构。矮卫星星系 - 我们自己星系中光晕子结构的最庞大指数 - 已知是极好的目标，实际上，在寻找DM歼灭信号时，当前的伽马射线实验不断审查它们。鉴于它们的典型数量密度和距离，更轻的Subhalos不够巨大，无法具有可见的Baryonic对应物。另外，驻留在较大光环中的Subhalos的块状分布可能会大大提高DM信号。在这个时代，伽马射线实验首次拥有达到DM参数空间中最相关区域的令人兴奋的潜力，如果我们旨在准确地预测DM诱导的磁通量，以探索远程远程的目标，以便在探索范围的范围内，我们的旨在准确地预测了目前正在测试的DM目标和场景的深入了解，以探讨远程启动的目标，以启用DED的范围，以衍生出dist的DED DED，我们的范围均可进行DED的启动。在这方面，Subhalos的统计和结构特性的精确表征变得至关重要。有了“ halo子结构在伽玛 - 射线暗物质搜索中的作用” [https://www.mdpi.com/journal/galaxies/special_issues/gamma-raydms]，我们的目标是总结我们今天在DM Halo子构建不同方面的知识上的立场；为了确定剩下的大问题，我们如何解决这些问题，并这样做，以找到新的研究途径。
An important open question today is the understanding of the relevance that dark matter (DM) halo substructure may have for DM searches. In the standard cosmological framework, subhalos are predicted to be largely abundant inside larger halos, i.e., galaxies like ours, and are thought to form first and later merge to form larger structures. Dwarf satellite galaxies -- the most massive exponents of halo substructure in our own galaxy -- are already known to be excellent targets and, indeed, they are constantly scrutinized by current gamma-ray experiments in their search for DM annihilation signals. Lighter subhalos not massive enough to have a visible baryonic counterpart may be good targets as well given their typical number densities and distances. In addition, the clumpy distribution of subhalos residing in larger halos may boost the DM signals considerably. In an era in which gamma-ray experiments possess, for the first time, the exciting potential of reaching the most relevant regions of the DM parameter space, a profound knowledge of the DM targets and scenarios being tested at present is mandatory if we aim for accurate predictions of DM-induced fluxes, for investing significant telescope observing time to selected targets, and for deriving robust conclusions from our DM search efforts. In this regard, a precise characterization of the statistical and structural properties of subhalos becomes critical. With the Special Issue "The Role of Halo Substructure in Gamma-Ray Dark Matter Searches" [https://www.mdpi.com/journal/galaxies/special_issues/Gamma-RayDMS], we aimed to summarize where we stand today on our knowledge of the different aspects of the DM halo substructure; to identify what are the remaining big questions, how we could address these and, by doing so, to find new avenues for research.
