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GCN Circular 12664

Subject
GRB 111209A - ATCA 34GHz upper limit
Event
GRB 111209A
Date
2011-12-12T03:58:18Z (14 years ago)
From
Paul Hancock at U of Sydney <hancock@physics.usyd.edu.au>
Paul J. Hancock, Tara Murphy, Bryan Gaensler (U of Sydney), Ashley 
Zauderer (Harvard)

On the 11th December 04:44-05:50UT (T=+1.9days) we observed GRB 111209A 
(GCN12632) with the Australia Telescope Compact Array (ATCA) at 34GHz. 
We do not detect any radio emission consistent with the GRB optical 
position (GCN12642). We place a 3sigma upper limit of 132uJy on the flux 
of the afterglow. Further observations are planned.

We thank the staff of the ATCA for their help in organising these 
observations.
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