Suzuki, M. and Kawai, N. (2005) Relation between prompt emission and afterglow of GRBs observed by HETE-2 and BeppoSAX. Il nuovo cimento C, 28 (4\5). pp. 557-560. ISSN 1826-9885
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Abstract
HETE-2 and BeppoSAX have localized and reported more than 110 GRBs. For about a third of them, optical afterglows have been detected and about 30 of them have known redshifts. Moreover, recent rapid follow-up observations enable us to study dim afterglows (so-called dark bursts) and afterglows of XRFs. We have studied properties of prompt emissions (Epeak, fluence) observed by HETE-2 or BeppoSAX and properties of optical afterglows (flux) reported in the literature and GCN circulars. We have found that the correlations between fluence of prompt emissions and flux of optical afterglows are significant in 0.03–0.1 day time interval. We will discuss implications of these results on the GRB mechanism, such as conversion efficiency from the kinetic energy into radiation, geometry of the jet, and their relation with the properties of the prompt emission.
| Item Type: | Article |
|---|---|
| Additional Information: | Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004. |
| Uncontrolled Keywords: | γ-ray sources; γ-ray bursts |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 16 Mar 2020 17:12 |
| Last Modified: | 16 Mar 2020 17:12 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/15785 |
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