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arXiv:astro-ph/0403608 (astro-ph)
[Submitted on 25 Mar 2004]

Title:The J-band Light Curve of SN 2003lw, Associated with GRB 031203

Authors:A. Gal-Yam, D.-S. Moon, D. B. Fox, A. M. Soderberg, S. R. Kulkarni, E. Berger, S. B. Cenko, S. Yost, D. A. Frail, M. Sako, W. L. Freedman, S. E. Persson, P. Wyatt, D. C. Murphy, M. M. Phillips, N. B. Suntzeff, P. A. Mazzali, K. Nomoto
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Abstract: At z=0.1055, the gamma-ray burst GRB 031203 is one of the two nearest GRBs known. Using observations from the Very Large Array (VLA) and Chandra X-ray Observatory, we derive sub-arcsecond localizations of the radio and X-ray afterglow of this GRB. We present near-infrared observations of the supernova SN 2003lw, which exploded in the host galaxy of the GRB 031203. Our deep, high resolution Magellan/PANIC data establish that this SN is spatially coincident with the radio and X-ray localizations of the afterglow of GRB 031203 to sub-arcsecond precision, and is thus firmly associated with the GRB. We use image differencing to subtract the bright emission from the host galaxy, and measure the time evolution of the SN between ~5 and ~50 days after the GRB. The resulting light curve has a shape which is quite different from that of the two SNe previously associated with GRBs, SN 1998bw and SN 2003dh. With SN 2003lw securely associated with this burst, we confirm that all three GRBs with redshifts z<0.3 were accompanied by SN explosions.
Comments: Submitted to ApJL. See full resolution version at this http URL
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0403608
  (or arXiv:astro-ph/0403608v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0403608
Journal reference: Astrophys.J.609:L59-L62,2004
Related DOI: https://doi.org/10.1086/422841

Submission history

From: Avishay Gal-Yam [view email]
[v1] Thu, 25 Mar 2004 23:06:47 UTC (437 KB)
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