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arXiv 2207.02451astro-ph.COhep-ph
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21厘米宇宙学对暗物质-中微子相互作用的约束及SKA1-Low的预测

Constraints on Dark Matter-Neutrino Interaction from 21-cm Cosmology and Forecasts on SKA1-Low

Antara Dey, Arnab Paul, Supratik Pal

AI总结:

本文利用21厘米宇宙学约束暗物质-中微子相互作用强度,发现其约束能力比现有观测高几个数量级,并对SKA1-Low的探测前景进行了预测分析。

摘要:

本文深入研究了暗物质(DM)与中微子之间的相互作用对再电离历史的可能影响。我们利用21厘米宇宙学对相互作用强度进行了约束,并发现了与标准的、无相互作用的ΛCDM情景之间可能存在的偏差。将结果与现有宇宙学观测给出的约束进行比较后发现,21厘米观测在约束相互作用强度方面更具竞争力,可将约束强度提高几个数量级。我们还通过对即将开展的21厘米任务SKA1-Low进行预测分析和误差估计,探索了探测此类相互作用的前景。

英文摘要:

In this article, we have done a thorough investigation of the possible effects of interaction between dark matter (DM) and neutrinos on reionization history. We have constrained the interaction strength using 21 cm Cosmology and found out possible deviations from standard, non-interacting $Λ$CDM scenario. Comparing the results with the existing constraints from present cosmological observations reveals that 21 cm observations are more competent to constrain the interaction strength by a few orders of magnitude. We have also searched for prospects of detecting any such interaction in the upcoming 21 cm mission SKA1-Low by doing a forecast analysis and error estimation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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