AbstractThe issue of the possible presence or absence of jets in GRBs is here re-examined for GRB991216. We compare and contrast our theoretically predicted afterglow luminosity in the 2–10keV band for spherically symmetric versus jetted emission. At these wavelengths the jetted emission can be excluded and data analysis confirms spherical symmetry. These theoretical fits are expected to be improved by the forthcoming data of the Swift mission.


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    Title :

    Evidence for isotropic emission in GRB991216


    Contributors:

    Published in:

    Advances in Space Research ; 38 , 7 ; 1291-1294


    Publication date :

    2005-05-19


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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