论文标题
中子星的冷却与轻暗物质混合：案例研究
Cooling of Neutron Stars admixed with Light Dark Matter: a case study
论文作者
论文摘要
中子星（NSS）以热，富含Lepton的物体的形式出生，这些物体会根据标准范式通过随后的阶段演化而来，它们通过发射，首先，中微子以及后来的光子来辐射能量过量。基于标准模型计算的当前描述无法完全解释已报告的数十个对象的所有现有冷却数据系列。在这项工作中，我们认为，实际上可以将冷却NSS实际上与一小部分的轻质暗物质（LDM）和$χ$混合在一起的可能性。我们专注于一个特定的案例研究，假设具有质量$m_χ= 0.1 $ $ $ \ rm gev/c^2 $的通用光候选者，通过在最终状态下产生中微子的伪级介体经历了自然宣传的反应。我们还包括一个附加功能，可以在深色芯内从LDM进行热传导。通过对NS温度演化进行模拟，我们发现冷却模式可能会因LDM的存在而扭曲，并根据其可观察性讨论这些结果。
Neutron Stars (NSs) are born as hot, lepton-rich objects that evolve according to the standard paradigm through subsequent stages where they radiate the excess of energy by emitting, first, neutrinos and, later on, photons. Current descriptions based on Standard Model calculations cannot fully explain all the existing cooling data series for the dozens of objects that have been reported. In this work, we consider the intriguing possibility that cooling NSs could be actually admixed with a fraction of light dark matter (LDM), $χ$. We focus on a particular case study assuming a generic light candidate with mass $m_χ=0.1$ $\rm GeV/c^2$ that undergoes self-annihilating reactions through pseudoscalar mediators producing neutrinos in the final state. We include one additional feature, allowing thermal conduction from LDM while inside the dark core. By performing simulations of the temperature evolution in the NS, we find that cooling patterns could be distorted by the presence of LDM and discuss these results in light of their observability.
