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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1618
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dc.contributor.authorPandey, S.B.-
dc.contributor.authorSagar, R.-
dc.contributor.authorBhattacharya, D.-
dc.date.accessioned2006-12-27T06:08:38Z-
dc.date.available2006-12-27T06:08:38Z-
dc.date.issued2005-11-
dc.identifier.citationAstrophysical Sources of High Energy Particles and Radiation, AIP Conference Proceedings, 2005, Vol. 801, p137-138en
dc.identifier.issn0094-243X-
dc.identifier.urihttp://hdl.handle.net/2289/1618-
dc.descriptionPaper presented at the AIP conference held at Torun, Poland, during 20-24 June 2005. Ed. by Tomasz Bulik et al.en
dc.description.abstractWe present our multi-band optical afterglow observations of the long duration GRB 021004 and GRB 030226 in combination with other published data to study the nature of the bursts. Optical afterglow light-curves of both the GRBs exhibit signatures of collimated outflow. Observed superimposed variability in the case of GRB 021004, in the form of bumps and wiggles, suggest density fluctuations in the ambient medium. The derived temporal and spectral flux decay indices of GRB 030226 afterglow show an inconsistency with the theoretically predicted values.en
dc.format.extent151545 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherAmerican Institute of Physicsen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?2005AIPC..801..137Pen
dc.relation.urihttp://dx.doi.org/10.1063/1.2141848en
dc.rights(2005) by American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.en
dc.subjectgamma-ray sources (astronomical)en
dc.subjectafterglowsen
dc.titleOptical afterglow observations of GRB 021004 and GRB 030226en
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

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