Primordial star formation triggered by UV photons from UHECR

2004/02/11 by Yu. A. Shchekinov, E. O. Vasiliev · 22 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astronomy and Astrophysical Research #Baryon #COSMIC cancer database #Cosmology #Earth Systems and Cosmic Evolution #Gamma-ray bursts and supernovae #Photon #Radiative transfer #Reionization #Star formation #Structure formation #Universe #astro-ph

paper · pdf · doi:10.1051/0004-6361:20034579

published in Astronomy and Astrophysics 419(1), 19-23 (EDP Sciences) · 5 pages, 3 figures, accepted in A&A

arxiv created 2004/02/11 · openalex publication_date 2004/04/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The presence of ultra-high energy cosmic rays in the universe in the pre-ionization epoch enhances significantly H2 kinetics in virialized halos. It results in more efficient radiative cooling and decreases the lower mass limit of the first star-forming systems. Consequently, the fraction of baryons contained in the first luminous objects and their contribution to the reionization of the universe can significantly increase in comparison with the standard scenario.

Citations

• The Implications of Wilkinson Microwave Anisotropy Probe Observations for Population III Star Formation Processes
• The Formation of the First Stars. I. The Primordial Star‐forming Cloud
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters

Cited by

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