Swift observations of GRB 050712


De Pasquale M. , GRUPE D., POOLE T. S. , BREEVELD A. A. , ZANE S., ROSEN S. R. , ...Daha Fazla

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.370, ss.1859-1866, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 370 Konu: 4
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1111/j.1365-2966.2006.10609.x
  • Dergi Adı: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Sayfa Sayıları: ss.1859-1866

Özet

We present the results of X-ray and optical observations of GRB 050712 performed by Swift. The X-ray light curve of this burst exhibits episodes of flares in the first 1000 s, the same epoch at which the UVOT detected an optical counterpart. A shallow X-ray decay, with a decay slope of alpha = -0.73, followed and lasted similar to 70 ks. This behaviour can be explained in terms of activity of the gamma-ray burst 'inner engine', with the possibility that the last flare is caused by the interaction of the ejecta with the surrounding medium.