De Pasquale, Massimiliano ; Kuin, N. P. M. ; Oates, S. ; Schulze, S. ; Cano, Z. ; Guidorzi, C. ; Beardmore, A. ; Evans, P. A. ; Uhm, Z. L. ; Zhang, B. ; Page, M. ; Kobayashi, S. ; Castro-Tirado, A. ; Gorosabel, J. ; Sakamoto, T. ; Fatkhullin, T. ; Pandey, S. B. ; Im, M. ; Chandra, P. ; Frail, D. ; Gao, H. ; Kopač, D. ; Jeon, Y. ; Akerlof, C. ; Huang, K. Y. ; Pak, S. ; Park, W.-K. ; Gomboc, A. ; Melandri, A. ; Zane, S. ; Mundell, C. G. ; Saxton, C. J. ; Holland, S. T. ; Virgili, F. ; Urata, Y. ; Steele, I. ; Bersier, D. ; Tanvir, N. ; Sokolov, V. V. ; Moskvitin, A. S. (2015) The optical rebrightening of GRB100814A: an interplay of forward and reverse shocks? Monthly Notices of the Royal Astronomical Society, 449 (1). pp. 1024-1042. ISSN 0035-8711
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Official URL: http://doi.org/10.1093/mnras/stv267
Related URL: http://dx.doi.org/10.1093/mnras/stv267
Abstract
We present a wide data set of gamma-ray, X-ray, UV/Opt/IR (UVOIR), and radio observations of the Swift GRB100814A. At the end of the slow decline phase of the X-ray and optical afterglow, this burst shows a sudden and prominent rebrightening in the optical band only, followed by a fast decay in both bands. The optical rebrightening also shows chromatic evolution. Such a puzzling behaviour cannot be explained by a single component model. We discuss other possible interpretations, and we find that a model that incorporates a long-lived reverse shock and forward shock fits the temporal and spectral properties of GRB100814 the best.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Oxford University Press |
| Keywords: | radiation mechanism: non-thermal, shock waves, gamma-ray burst: general |
| ID Code: | 125721 |
| Deposited On: | 17 Oct 2022 08:48 |
| Last Modified: | 17 Oct 2022 08:48 |
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