Spectral and temporal properties of long GRBs detected by INTEGRAL from 3 keV to 8 MeV

A. Martin-Carrillo, M. Topinka, L. Hanlon, S. Meehan, S. Foley, B. McBreen, Søren Brandt, D. Tierney

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    Abstract

    Since its launch in 2002, INTEGRAL has triggered onmore than 78 g –ray bursts in the 20-200 keV energy range with the IBIS/ISGRI instrument. Almost 30% of these bursts occurred within the fully coded field of view of the JEM-X detector (5) which operates in the 3-35 keV energy range. A detailed study of the spectral and temporal evolution of a subset of 7 INTEGRAL g – ray bursts across a wide energy range from 3 keV to 8MeV has been carried out. This GRB
    sample is characterised by long multi-peaked bursts that are bright in the JEM-X energy range and encompass X-ray rich bursts, X-ray flashes and classical GRBs. We report the detection of X-ray prompt and afterglow emission from GRB 041219A and GRB081003A with JEM-X for the first time. At least two temporal breaks have been identified in the X-ray afterglow light curve of GRB 081003A. These results demonstrate INTEGRAL’s broadband capabilities for the study
    of the transition from X-ray prompt to afterglow emission in g –ray bursts.
    Original languageEnglish
    JournalP o S - Proceedings of Science
    Number of pages7
    ISSN1824-8039
    Publication statusPublished - 2010
    Event8th INTEGRAL Workshop : The Restless Gamma-ray Universe - Dublin, Ireland
    Duration: 27 Sept 201030 Sept 2010
    http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=115.

    Conference

    Conference8th INTEGRAL Workshop
    Country/TerritoryIreland
    CityDublin
    Period27/09/201030/09/2010
    Internet address

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