TY - JOUR
T1 - The INTEGRAL view of Gamma-Ray Bursts
AU - Ubertini, Pietro
AU - Corsi, A.
AU - Foley, S.
AU - McGlynn, S.
AU - De Cesare, G.
AU - Bazzano, A.
N1 - Funding Information:
PU and AB acknowledge financial contribution from ASI-INAF contract I/008/07/0. AC is grateful to the Italian L’Oreal-UNESCO program “For Women in Science” and acknowledges the support of ASI-INAF contract I/088/06/0.
PY - 2011/4/15
Y1 - 2011/4/15
N2 - 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.
AB - 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.
KW - 95.30.Gv Radiation mechanisms
KW - 98.70.Rz γ-Ray sources
KW - Gamma-Ray Bursts
KW - Polarization
KW - γ-Rays, GRB, Surveys, 95.85.Pw γ-ray
UR - http://www.scopus.com/inward/record.url?scp=79953029811&partnerID=8YFLogxK
U2 - 10.1016/j.asr.2010.09.023
DO - 10.1016/j.asr.2010.09.023
M3 - Article
AN - SCOPUS:79953029811
SN - 0273-1177
VL - 47
SP - 1374
EP - 1386
JO - Advances in Space Research
JF - Advances in Space Research
IS - 8
ER -