SEARCH FOR A RADIO COUNTERPART TO GRB 940301 WITH WESTERBORK

The COMPTEL instrument onboard the Comptom Gamma-Ray Observatory image d the bright gamma-ray burst GRB 940301 within 1.6 hours of the event, with a mean la error radius of 1.5 degrees. The error region was subs equently refined by combining the COMPTEL location with the are derive d from differences in the event arrival time at the Ulysses and BATSE detectors. Westerbork observations of the COMPTEL error region began o n March 4 1994 at 21 cm, however coverage of the refined position was not obtained until 32 days after the GRB occurrence, by which time the operating wavelength had changed to 92 cm. We have constrained the le vel of variability of sources within the triangulation arc-COMPTEL 2 s igma error box region to be less than 40 mJy (5 sigma upper limit) at 92 cm 41 days after the burst.