Optical observations and multiband modelling of the afterglow of GRB041006 : evidence of a hard electron energy spectrum

Misra, Kuntal ; Resmi, L. ; Pandey, S. B. ; Bhattacharya, D. ; Sagar, R. (2005) Optical observations and multiband modelling of the afterglow of GRB041006 : evidence of a hard electron energy spectrum Bulletin of the Astronomical Society of India, 33 (4). pp. 487-497. ISSN 0304-9523

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Abstract

We present the CCD Cousins R band photometric observations of the afterglow of GRB 041006. The multiband afterglow evolution is modelled using an underlying 'hard' electron energy spectrum with a p₁ ~ 1.3. The burst appears to be of very low energy (E ~ 10⁴⁸ ergs) confined to a narrow cone of opening angle θ ~ 2.3°. The associated supernova is compared with SN1998bw and is found to be brighter.

Item Type:	Article
Source:	Copyright of this article belongs to Astronomical Society of India.
Keywords:	Gamma-ray Bursts; GRB Afterglows; Flux Decay; Spectral Index
ID Code:	65956
Deposited On:	20 Oct 2011 06:21
Last Modified:	18 May 2016 13:43

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