[vsnet-grb-info 12504] PdB IRAM observation of GRB 121011A

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13871
SUBJECT: PdB IRAM observation of GRB 121011A
DATE:    12/10/15 15:59:29 GMT
FROM:    Bruce Gendre at ASDC  <bruce.gendre at asdc.asi.it>

B. Gendre (INAF-OAR/ASDC), C. Feruglio (IRAM), G. Stratta (INAF-OAR), A. 
Antonelli (INAF-OAR/ASDC), J.L. Atteia (IRAP/OMP), S. Basa (LAM/OAMP), 
M. Boër (Artemis/CNRS), S. Cutini (INAF-OAR/ASDC), V. D'Elia 
(INAF-OAR/ASDC), A. Klotz (IRAP/OMP), L. Piro (INAF-IAPS),  repport:

we observed the position of GRB 121011A (Racusin et al., GCN 13845) with 
the Interferometer of the Plateau de Bure on 2012-10-11, starting at 
15:30 UT for 1.46 hours, at frequency 130 GHz. The observing conditions 
were good, with a stable atmosphere (phase rms below 35 degrees), 
Tsys~200 and water vapor about 6 mm.

No afterglow has been detected, with an upper limit of 214 micro Jy.

Given the radio non detection (van der Horst, GCN 13868) and the 
faintness of this object as seen in X-ray (Burrows et al., GCN 13857), 
no further observations are planned.

We thank the technical staff of IRAM for fast support of the trigger.

This message can be cited.

Based on observations carried out with the IRAM Plateau de Bure 
Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) 
and IGN (Spain).