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The INTEGRAL view of Gamma-Ray Bursts
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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2011 (English)In: Advances in Space Research, ISSN 0273-1177, Vol. 47, no 8, 1374-1386 p.Article in journal (Refereed) Published
Abstract [en]

After more than six and half years in orbit, the ESA space observatory INTEGRAL has provided new, exciting results in the soft gamma-ray energy range (from a few keV to a few MeV). With the discovery of about 700 hard X-Ray sources, it has changed our previous view of a sky composed of peculiar and "monster" sources. The new high energy sky is in fact full of a large variety of normal, very energetic emitters, characterized by new accretion and acceleration processes (see also IBIS cat4 (Bird et al., 2010). At the same time, about one GRB/month is detected and imaged by the two main gamma-ray instruments on board: IBIS and SPI. In this paper, we review the major achievements of the INTEGRAL observatory in the field of Gamma-Ray Bursts. We summarize the global properties of Gamma-Ray Bursts detected by INTEGRAL, with respect to their duration, spectral index, and peak flux distributions. We recall INTEGRAL results on the spectral lag analysis, showing how long-lag GRBs appear to form a separate population at low peak fluxes. We review the outcome of polarisation studies performed by using INTEGRAL data. Finally, concerning single GRB studies, we highlight the properties of particularly interesting Gamma-Ray Bursts in the INTEGRAL sample. 

Place, publisher, year, edition, pages
2011. Vol. 47, no 8, 1374-1386 p.
Keyword [en]
gamma-Rays, GRB, Surveys, 95.85.Pw gamma-ray, 98.70.Rz gamma-Ray sources, Gamma-Ray Bursts, 95.80.+p Sky surveys, 95.30.Gv Radiation mechanisms, Polarization
National Category
Aerospace Engineering
URN: urn:nbn:se:kth:diva-33990DOI: 10.1016/j.asr.2010.09.023ISI: 000290136700016ScopusID: 2-s2.0-79953029811OAI: diva2:418424
QC 20110523Available from: 2011-05-23 Created: 2011-05-23 Last updated: 2012-03-21Bibliographically approved

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McGlynn, Sinead
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