GASP detection of an optical flare of the blazar S5 0716+71
ATel #1223; D. Carosati (Armenzano Astronomical Observatory, Assisi, Italy), V. M. Larionov and L. Larionova (Astronomical Institute, St.-Petersburg State University and Pulkovo Observatory, St. Petersburg, Russia), J. A. Ros (AgrupaciÃ³ AstronÃ²mica de Sabadell, Spain), M. Villata and C. M. Raiteri (INAF, Osservatorio Astronomico di Torino, Italy)
on 24 Sep 2007; 09:33 UT
Credential Certification: Claudia M. Raiteri (firstname.lastname@example.org)
With reference to ATEL #1221 announcing the possible detection at gamma-ray energies of the blazar S5 0716+71, the GLAST-AGILE Support Program (GASP) of the Whole Earth Blazar Telescope (WEBT) reports on the observation of an optical flare of this blazar in the same period. The source brightened
from R = 12.92 +/- 0.01 on September 8 to R = 12.58 +/- 0.04 on September 12,
it was R = 12.60-12.65 the day after, and faded to R = 13.01-13.03 on September 15, 2007.