Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/1666
 Title: Radio, millimeter and optical monitoring of GRB 030329 afterglow: constraining the double jet model Authors: Resmi, LIshwara-Chandra, C. HCastro-Tirado, A. JBhattacharya, DRao, A. PBremer, MPandey, S. BSahu, D. KBhatt, B. CSagar, RAnupama, G. CSubramaniam, ALundgren, AGorosabel, JGuziy, Sde Ugarte Postigo, ACastro Cerón, J. MWiklind, T Keywords: Gamma rays: bursts Issue Date: Sep-2005 Publisher: EDP Sciences Citation: Astronomy & Astrophysics, Vol. 440, pp. 477 - 485 Abstract: We present radio, millimeter and optical observations of the afterglow of GRB 030329. $UBVR_{\rm C}I_{\rm C}$ photometry is presented for a period of 3 h to 34 days after the burst. Radio monitoring at 1280 MHz has been carried out using the GMRT for more than a year. Simultaneous millimeter observations at 90 GHz and 230 GHz have been obtained from the Swedish-ESO Submillimeter Telescope (SEST) and the IRAM-PdB interferometer over more than a month following the burst. We use these data to constrain the double jet model proposed by Berger et al. (2003) for this afterglow. We also examine whether instead of the two jets being simultaneously present, the wider jet could result from the initially narrow jet, due to a fresh supply of energy from the central engine after the "jet break" URI: http://hdl.handle.net/2248/1666 ???metadata.dc.relation.uri???: http://arxiv.org/abs/astro-ph/0505314http://dx.doi.org/10.1051/0004-6361:20041642 Appears in Collections: Publications based on data from IAO, HanleIIAP Publications

Files in This Item:
File Description SizeFormat