The average Gamma-Ray Burst X-ray flaring activity

Details The average Gamma-Ray Burst X-ray flaring activity The average Gamma-Ray Burst X-ray flaring activity

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1358..142m&link_type=abstract

GAMMA RAY BURSTS 2010. AIP Conference Proceedings, Volume 1358, pp. 142-145 (2011).

Astronomy and Astrophysics

Astronomy

Brightness, X-Ray Sources (Astronomical), Accretion, Explosions, Magnitudes And Colors, Luminosities, X-Ray Sources, X-Ray Bursts, Infall, Accretion, And Accretion Disks, Nuclear Explosion Seismology

Scientific paper

Gamma-ray burst (GRB) X-ray flares are believed to mark the late time activity of the central engine. I compute the temporal evolution of the average flare luminosity in the common rest frame energy band of 44 GRBs taken from the large Swift 5-years data base. This work highlights the importance of a proper consideration of the threshold of detection of flares against the contemporaneous continuous X-ray emission. In the time interval 30 s~t-2.7+/-0.1, while the flare isotropic energy decays as Eiso,flare~t-1.7. These results are discussed in the context of GRB hyper-accretion models.

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