Modelling GRB021004 by multiple energy injections

de Ugarte Postigo, A. and Gorosabel, J. and Castro-Tirado, A. J. and Jóhannesson, G. and Björnsson, G. and Gudmundsson, E. H. and Bremer, M. and Castro Cerón, J. M. and Guzyi, S. and Jelínek, M. and Pérez-Ramirez, D. (2005) Modelling GRB021004 by multiple energy injections. Il nuovo cimento C, 28 (3). pp. 287-290. ISSN 1826-9885

ncc8985.pdf - Published Version

Download (194kB) | Preview
Official URL:


GRB021004 is one of the best sampled gamma-ray bursts (GRB) todate, however the nature of its light curve is still being debated. A compilation of multiwavelength (from radio to X-rays) observations, including unpublished optical/near-infrared and millimetre observations, is used to fit a model based on 7 refreshed shocks that took place during the evolution of the afterglow. They imply a total energy release of ∼ 8 × 1051 erg. Analysis of the late photometry reveals that the GRB021004 host is a low extinction (AV ∼ 0.1) starburst galaxy with MB � −22.0.

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: Photography and photometry ; γ-ray sources; γ-ray bursts
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 15 Mar 2020 11:54
Last Modified: 15 Mar 2020 11:54

Actions (login required)

View Item View Item