[vsnet-grb-info 702] Type Ic SN2003L (SN/GRB?) Radio Observations

[GCN Circulars <gcncirc@lheawww.gsfc.nasa.gov>]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1834
SUBJECT: Type Ic SN2003L (SN/GRB?) Radio Observations
DATE:    03/01/29 03:22:54 GMT
FROM:    Alicia Soderberg at Caltech  <ams@astro.caltech.edu>

A. M. Soderberg, E. Berger, S. R. Kulkarni and D. A. Frail report

"We have observed the type Ic SN 2003L (IAUC 8048) with the VLA on Jan
26.23 UT. We find a bright radio source at the optical position of the
supernova with a flux of 1.4 mJy at 8.5 GHz.  An additional epoch on
Jan 28.22 UT confirms the transient nature of the radio source.  SN
2003L has a radio luminosity approaching that of SN 1998bw, suggesting
that the ejecta are possibly relativisitic.  Such brilliant radio
luminosity at early times is rare. Thus, further observations, in
particular optical spectroscopy (for broad lines), optical monitoring,
X-ray observations, and searches for gamma-ray emission towards the SN in
archival data are highly desirable. We plan to continue monitoring the
source at the VLA over the next few months."

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