Vetere, L. and Massaro, E. and Costa, E. and Soffitta, P. (2005) Slow components in the X-ray light curves of Gamma-Ray Bursts. Il nuovo cimento C, 28 (3). pp. 359-362. ISSN 1826-9885
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Abstract
Gamma-ray burst light curves show quite different patterns: from very simple to extremely complex. For some events the time profile in the 2–5 keV range is characterised by peaks superposed on a slowly evolving pedestal. We describe this behaviour with the presence of two components (slow and fast) having different time scales. The slow component is usually less pronounced in the 5–10 keV and almost disappears at higher energies. We present a time and spectral study of the slow components of several GRBs detected by the Wide Field Cameras on board BeppoSAX. The origin of the slow components is likely different from that of the fast ones and can be related either to the presence of a hot photosphere or to the overlapping of the prompt emission with the initial phase of the afterglow.
| Item Type: | Article |
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| Additional Information: | Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004. |
| Uncontrolled Keywords: | X-r ay ; γ-ray sources; γ-ray bursts |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 16 Mar 2020 10:20 |
| Last Modified: | 16 Mar 2020 10:20 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/15644 |
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