Free Access
Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999
Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
Page(s) 465 - 466
Published online 15 September 1999
DOI: 10.1051/aas:1999311

Astron. Astrophys. Suppl. Ser. 138, 465-466

On the possible association of SN1998bw and GRB980425

T.J. Galama 1 - P.M. Vreeswijk 1 - J. van Paradijs 1,2 - C. Kouveliotou 3,4 - T. Augusteijn 5 - F. Patat 5 - J. Heise 6 -
J. in 't Zand 6 - P.J. Groot 1 - R.A.M.J. Wijers7 - E. Pian8 - E. Palazzi8 - F. Frontera8 - N. Masetti8

Send offprint request: T.J. Galama

1 - Astronomical Institute "Anton Pannekoek"/CHEAF, Kruislaan 403, 1098 SJ, Amsterdam, The Netherlands
2 - Physics Department, UAH, Huntsville, AL 35899, U.S.A.
3 - Universities Space Research Association, U.S.A.
4 - NASA Marshall Space Flight Center, ES-84, Huntsville, AL 35812, U.S.A.
5 - ESO, Casilla 19001, Santiago 19, Chile
6 - SRON Laboratory for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
7 - Dept. of Physics and Astronomy, SUNY, Stony Brook, NY 11794-3800, U.S.A.
8 - Istituto Tecnologie e Studio Radiazioni Extraterrestri, CNR, Bologna, Italy

Received December 29, 1998; accepted May 4, 1999


We here discuss the possibility that the peculiar supernova SN1998bw and the Gamma-Ray Burst GRB 980425 are associated. If the two are related, the energy radiated in $\gamma$ rays is at least four orders of magnitude less than in other GRBs, although its appearance is otherwise unremarkable: this suggests that very different mechanisms may give rise to GRBs.

Key words: gamma-rays: bursts -- (stars:) supernovae: individual: SN1998bw

Copyright The European Southern Observatory (ESO)

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