Stars and Stellar Systems at Z > 5: Implications for Structure Formation and Nucleosynthesis

Details Stars and Stellar Systems at Z > 5: Implications for Structure Formation and Nucleosynthesis Stars and Stellar Systems at Z > 5: Implications for Structure Formation and Nucleosynthesis

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ssrv...84...43r&link_type=abstract

Space Science Reviews, v. 84, Issue 1/2, p. 43-53 (1998).

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Enough UV radiation was generated before z = 5 to have ionized the intergalactic medium. If this comes from stars (probably aggregated in systems of subgalactic scale), one straightforwardly calculates that the associated nucleosynthesis would be sufficient to produce a universal abundance of order 1 percent of solar. The first 'pre-galaxies' may eventually be detectable by their direct UV emission, with characteristic spectral features at Lyman alpha; high-z supernovae may also be detectable. Other probes of the IGM beyond z = 5, and of the epochs of reheating and reionization, are discussed, along with possible links between the diffusion of pregalactic metals and the origin of magnetic fields.

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