AGILE detection of Cygnus X-3 above 400 MeV

The AGILE satellite has been monitoring the Cygnus X-3 region in the spinning mode. The AGILE-GRID detector does not detect significant gamma-ray emission during the period of the Fermi-LAT detection on MJD 55642 (March 22, 2011, ATel #3233). Integrating during the period MJD 55641-55642 (a standard 2-day integration of the AGILE spinning mode) we obtain a 95% confidence level upper limit of 1.1 x 10-6 ph cm-2 s-1 (E > 100 MeV).