The First Direct Supernova/GRB Connection: GRB 030329/SN 2003dh

Details The First Direct Supernova/GRB Connection: GRB 030329/SN 2003dh The First Direct Supernova/GRB Connection: GRB 030329/SN 2003dh

2003-09-29

arxiv.org/abs/astro-ph/0309793v1

Astronomy and Astrophysics

Astrophysics

10 pages, 5 figures, to be published in the proceedings of ``3-D Signatures in Stellar Explosions: A Workshop honoring J. Crai

Scientific paper

Observations of gamma-ray burst (GRB) afterglows have yielded tantalizing hints that supernovae (SNe) and GRBs are related. The case had been circumstantial, though, relying on irregularities in the light curve or the colors of the afterglow. I will present observations of the optical afterglow of GRB 030329. The early spectra show a power-law continuum, consistent with other GRB afterglows. After approximately one week, broad peaks in the spectrum developed that were remarkably similar to those seen in the spectra of the peculiar Type Ic SN 1998bw. This is the first direct, spectroscopic confirmation that at least some GRBs arise from SNe.

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