Relativistic beaming and gamma-ray bursts
نویسندگان
چکیده
منابع مشابه
X-ray lines, progenitor and beaming of Gamma-Ray Bursts
X-ray emission features have been detected in at least five GRB afterglows. Their detection and properties are of great importance in our understanding of the nature of the GRB progenitor. Moreover, they provide us with an uncollimated source of photons, allowing us to put firm constraints on the total energy produced in GRBs, and therefore on their degree of collimation. I will review the radi...
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Most of gamma-ray bursts (GRBs) models have predicted that the intrinsic isotropic energy is limited to below ∼ 10ergs. Recently claimed high redshifts, correlation with supernovae, and connection to the cosmic star formation activity point to a different energy requirement and source evolution history possibly with strong beaming. We study the effects of the beaming-induced luminosity function...
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The possibility that gamma-ray bursts (GRBs) were not isotropic emissions was devised theoretically as a way to ameliorate the huge energetic budget implied by the standard fireball model for these powerful phenomena. However, the mechanism by which after the quasy-isotropic release of a few 10 erg yields a collimated ejection of plasma could not be satisfactory explained analytically. The reas...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1994
ISSN: 0004-637X,1538-4357
DOI: 10.1086/187292