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A Most Energetic Type Ic Supernova: SN 2003L

  • Alicia M. Soderberg (a1)

Summary

We present extensive radio observations of SN2003L, the most luminous and energetic Type Ic radio supernova with the exception of SN 1998bw. Using radio data, we are able to constrain the physical parameters of the supernova, including the velocity and energy of the fastest ejecta, the temporal evolution of the magnetic field, and the density profile of the surrounding medium. We highlight the extraordinary properties of the radio emission with respect to the supernova’s normal characteristics within optical bands. We find that although the explosion does not show evidence for a significant amount of relativistic ejecta, it produces a radio luminosity which is comparable to that seen in the unusual SN1998bw. Using SN2003L as an example, we comment briefly on the broad diversity of type Ic properties and the associated implications for progenitor models.

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Copyright

References

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1. Berger, E., Kulkami, S.R., Chevalier, R.A.: Astrophys. J. Lett. 577, L5 (2002)
2. Boles, T.: IAUC 8048 (2003)
3. Kulkami, S.R. et al.: Nature 295, 663 (1998)
4. Li, Z., Chevalier, R.A.: Astrophys. J. 526, 716 (1999)
5. Matheson, T., Challis, P., Kirshner, R.R, Garnavich, P.M.: GCN 1846 (2003)
6. Readhead, A.C.: Astrophys. J. 426, 51 (1994)
7. Soderberg, A.M.: in preparation
8. Valenti, S. et al.: IAUC 8057 (2003)

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