论文标题
lyman- $α$限制对暗物质歼灭和衰减的宇宙加热
Lyman-$α$ Constraints on Cosmic Heating from Dark Matter Annihilation and Decay
论文作者
论文摘要
我们通过要求将能量注射到lyman-$α$森林的测量结果时，我们对腐烂和消灭暗物质（DM）的模型产生了新的限制。我们通过使用最近开发的$ \ texttt {darkHistory} $代码软件包对以前的分析进行了改进，该软件包会考虑到由于电离和DM来源而引起的其他光电离电和光热过程。我们的限制对电离和竞争性的不确定性具有强大的限制，并在优先衰减电子的子GEV DM上的领先限制。
We derive new constraints on models of decaying and annihilating dark matter (DM) by requiring that the energy injected into the intergalactic medium (IGM) not overheat it at late times, when measurements of the Lyman-$α$ forest constrain the IGM temperature. We improve upon previous analyses by using the recently developed $\texttt{DarkHistory}$ code package, which self-consistently takes into account additional photoionization and photoheating processes due to reionization and DM sources. Our constraints are robust to the uncertainties of reionization and competitive with leading limits on sub-GeV DM that decays preferentially to electrons.
