Long-term optical monitoring of GRB 030329

Details Long-term optical monitoring of GRB 030329 Long-term optical monitoring of GRB 030329

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..836..420b&link_type=abstract

GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. AIP Conference Proceedings, Volume 836, pp. 420-

Astronomy and Astrophysics

Astrophysics

1

Gamma-Ray Sources, Gamma-Ray Bursts, Supernovae, Photography And Photometry

Scientific paper

We present photometric data for GRB 030329/SN 2003dh obtained over a year after the event. The decay rate of the SN is very similar to that of SN 1998bw. We discuss the ``jitter'' episode that occurred ~ 50 - 65 days after the explosion and argue that it was produced by the GRB afterglow and not by the supernova. A spectrum obtained eight months after the explosion, combined with the late-time light curve, allow us to determine the amount of nickel. We find that at least 0.35 Msolar of 56Ni was synthesized during the explosion; the total mass of 56Ni may be up to about 1 Msolar.

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