Collimated high-energy photons and others possible observational effects of the photon angular and spectral distribution in gamma-ray bursts sources

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dc.creatorSokolov, V. V.
dc.creatorKurt, V. G.
dc.creatorBisnovatyi-Kogan, G. S.
dc.creatorGnedin, Yu. N.
dc.creatorBaryshev, Yu. V.
dc.creatorFatkhullin, T. A.
dc.creatorLebedev, V. S.
dc.date2004-10-14
dc.date2006-03-15
dc.date.accessioned2026-07-07T06:37:04Z
dc.date.available2026-07-07T06:37:04Z
dc.descriptionTypical observational gamma-ray burst (GRB) spectra are discussed and, in this connection, what is the origin of the compactness problem and how it was solved at first. If the threshold for $e^{-}e^{+}$ pair production depends on an angle between photon momenta, then another solution of the compactness problem is possible. We discuss a possibility of the $γ$-rays collimation and the dependence of photon beaming on photon energies. The list of basic assumptions of the scenario describing the GRB source with energy $< 10^{49}$ ergs are adduced: the matter is about an alternative to the ultrarelativistic fireball if {\it all} long-duration GRBs are related or physically connected with {\it normal/unpeculiar} core-collapse supernovae (SNe). Namely, we consider the questions about radiation pressure and how the jet arises on account of even small asymmetry of the radiation field in a compact GRB source. The possibility of a new approach to explanation of GRB phenomenon is shown. Possible mechanisms of their generation in regions of size $< 10^8$cm are discussed (a compact model of GRBs). Observational consequences of the compact GRB energy release are considered.
dc.descriptionhe modified version for the journal. Two paragraphs were corrected near formula (1)
dc.identifierhttps://arxiv.org/abs/astro-ph/0410350
dc.identifierhttp://arxiv.org/abs/astro-ph/0410350
dc.identifierBull. Spec. Astrophys. Obs., 2005, 59, 5-17
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100268
dc.subjectAstrophysics
dc.titleCollimated high-energy photons and others possible observational effects of the photon angular and spectral distribution in gamma-ray bursts sources
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