标题： 超高能宇宙射线对早期宇宙恒星形成的影响 显示英文标题

标题： The influence of ultra-high-energy cosmic rays on star formation in the early universe

摘要： 超高能宇宙射线（UHECR）的存在导致再结合后宇宙的电离程度增加，这提高了H$_2$分子的生成效率和第一颗恒星的形成效率。 因此，第一颗恒星的形成开始时间被推移到更高的红移处，第一颗恒星系统的质量减小。 作为结果，提供宇宙再电离的电离辐射的充分增加可能发生。 我们讨论这些效应的可能观测表现及其对UHECR参数的依赖性。 显示英文摘要

摘要： The presence of ultra-high-energy cosmic rays (UHECR) results in an increase in the degree of ionization in the post-recombination Universe, which stimulates the efficiency of the production of H$_2$ molecules and the formation of the first stellar objects. As a result, the onset of the formation of the first stars is shifted to higher redshifts, and the masses of the first stellar systems decrease. As a consequence, a sufficient increase in the ionizing radiation providing the reionization of the Universe can take place. We discuss possible observational manifestations of these effects and their dependence on the parameters of UHECR.