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

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dc.creatorVasiliev, E. O.
dc.creatorShchekinov, Yu. A.
dc.date2006-09-18
dc.date.accessioned2026-07-07T10:23:38Z
dc.date.available2026-07-07T10:23:38Z
dc.descriptionThe 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.
dc.description10 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0609486
dc.identifierhttp://arxiv.org/abs/astro-ph/0609486
dc.identifierAstron.Rep.50:778-784,2006; PismaAstron.Zh.83:872-879,2006
dc.identifierdoi:10.1134/S1063772906100027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175903
dc.subjectAstrophysics
dc.titleThe influence of ultra-high-energy cosmic rays on star formation in the early universe
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