Optical follow-up of GRB afterglows from UPSO, Naini Tal

dc.contributor.author	Pandey, S. B.
dc.contributor.author	Sagar, R.
dc.contributor.author	Mohan, V.
dc.contributor.author	Pandey, A. K.
dc.contributor.author	Bhattacharya, D.
dc.contributor.author	Castro-Tirado, A. J.
dc.date.accessioned	2009-07-31T05:17:04Z
dc.date.available	2009-07-31T05:17:04Z
dc.date.issued	2001
dc.identifier.citation	This article downloded from ADS Free Online Journal	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/208
dc.description.abstract	Successful optical photometric observations of live GRB afterglows namely GRB 990123, GRB 991216, GRB 000301c and GRB 000926 have been carried out from State Observatory Naini Tal till 2000. the reesults and light curve parameters of these GRBs are summarised here. The optical light curves of these GRBs exhibit break (i.e., early and late time power law decay with different indices) generally around 2 days after the burst. The observed steepening in the afterglow light curves may be due to non-isotropic emission from the burst ejecta in the course of time. The non-isotropic energy emission from these GRBs is ≤ 10⁵² ergs and can be understood in terms of current popular models for the origin of GRBs.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	basi29-459
dc.subject	GRB, UPSO	en_US
dc.title	Optical follow-up of GRB afterglows from UPSO, Naini Tal	en_US
dc.type	Article	en_US