Cosmological Uses of Gamma-Ray Bursts

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dc.creatorDjorgovski, S. G.
dc.creatorKulkarni, S. R.
dc.creatorFrail, D. A.
dc.creatorHarrison, F. A.
dc.creatorBloom, J. S.
dc.creatorBerger, E.
dc.creatorPrice, P. A.
dc.creatorFox, D.
dc.creatorSoderberg, A. M.
dc.creatorSari, R.
dc.creatorYost, S.
dc.creatorMahabal, A. A.
dc.creatorCastro, S. M.
dc.creatorGoodrich, R.
dc.creatorChaffee, F.
dc.date2003-01-31
dc.date.accessioned2026-07-07T02:07:26Z
dc.date.available2026-07-07T02:07:26Z
dc.descriptionStudies of the cosmic gamma-ray bursts (GRBs) and their host galaxies are starting to provide interesting or even unique new insights in observational cosmology. GRBs represent a new way of identifying a population of star-forming galaxies at cosmological redshifts. GRB hosts are broadly similar to the normal field galaxy populations at comparable redshifts and magnitudes, and indicate at most a mild luminosity evolution out to z ~ 1.5 - 2. GRB optical afterglows seen in absorption provide a powerful new probe of the ISM in dense, central regions of their host galaxies, complementary to the traditional studies using QSO absorbers. Some GRB hosts are heavily obscured, and provide a new way to select a population of cosmological sub-mm sources, and a novel constraint on the total obscured fraction of star formation over the history of the universe. Finally, detection of GRB afterglows at z > 6 may provide a unique way to probe the primordial star formation, massive IMF, early IGM, and chemical enrichment at the end of the cosmic reionization era.
dc.descriptionAn invited review, to appear in: "Gamma-Ray Bursts in the Afterglow Era: 3rd Workshop", ASPCS, in press; LaTeX file, 8 pages, 1 eps figure, style files included
dc.identifierhttps://arxiv.org/abs/astro-ph/0302004
dc.identifierhttp://arxiv.org/abs/astro-ph/0302004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5694
dc.subjectAstrophysics
dc.titleCosmological Uses of Gamma-Ray Bursts
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