In Situ Probes of the First Galaxies and Reionization: Gamma-ray Bursts - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: The first structures in the Universe formed at z>7, at higher redshift thanall currently known galaxies. Since GRBs are brighter than other cosmologicalsources at high redshift and exhibit simple power-law afterglow spectra that isideal for absorption studies, they serve as powerful tools for studying theearly universe. New facilities planned for the coming decade will be able toobtain a large sample of high-redshift GRBs. Such a sample would constrain thenature of the first stars, galaxies, and the reionization history of theUniverse.



Autor: Matthew McQuinn Harvard-CFA, Joshua S. Bloom UC Berkeley, Jonathan Grindlay Harvard-CFA, David Band GSFC, S.D. Barthelmy GSFC, E.

Fuente: https://arxiv.org/







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