Following the announcement of a Gamma-ray flare of the blazar S5 1803+78 (ATel #3322) on May 2 2011, I observed the source on May 4 2011 at 22:35 UT with the 23 cm telescope on top the Department of Physics of La Sapienza University with an R_C filter and an Apogee U2 CCD camera. Comparison stars were taken from Nesci et al. (2002, AJ 124, 53). The source appeared at R=15.6 ±0.1, an average value for this source, whose large optical flares are at R~14.
Optical follow-up of S5 1803+78 / Nesci, Roberto. - ELETTRONICO. - (2011), pp. 3323-3323.
Optical follow-up of S5 1803+78
NESCI, Roberto
2011
Abstract
Following the announcement of a Gamma-ray flare of the blazar S5 1803+78 (ATel #3322) on May 2 2011, I observed the source on May 4 2011 at 22:35 UT with the 23 cm telescope on top the Department of Physics of La Sapienza University with an R_C filter and an Apogee U2 CCD camera. Comparison stars were taken from Nesci et al. (2002, AJ 124, 53). The source appeared at R=15.6 ±0.1, an average value for this source, whose large optical flares are at R~14.File allegati a questo prodotto
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