Constraints on ultra-high energy neutrinos from optically thick astrophysical accelerators

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dc.creatorGorbunov, D. S.
dc.creatorTinyakov, P. G.
dc.creatorTroitsky, S. V.
dc.date2002-06-21
dc.date2002-10-21
dc.date.accessioned2026-07-07T11:46:01Z
dc.date.available2026-07-07T11:46:01Z
dc.descriptionThe Z-burst mechanism invoked to explain ultra-high energy cosmic rays is severely constrained by measurements of the cosmic gamma-ray background by EGRET. We discuss the case of optically thick sources and show that jets and hot spots of active galaxies cannot provide the optical depth required to suppress the photon flux. Other extragalactic accelerators (AGN cores and sites of gamma ray bursts), if they are optically thick, could be tested by future measurements of the secondary neutrino flux.
dc.description9 pages, 1 figure; v2: 10 pages, references added; experimental data on neutrino fluxes updated significantly; to be published in Astropart.Phys
dc.identifierhttps://arxiv.org/abs/astro-ph/0206385
dc.identifierhttp://arxiv.org/abs/astro-ph/0206385
dc.identifierAstropart.Phys.18:463-470,2003
dc.identifierdoi:10.1016/S0927-6505(02)00207-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202077
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleConstraints on ultra-high energy neutrinos from optically thick astrophysical accelerators
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