The blazar 4C+21.35 (PKS 1222+21) was reported by AGILE (ATel #2686) and FermiGST (ATel #2687) to have a Gamma-ray flare; SWIFT X-ray and UV-optical follow-up was reported in Atel #2698; polarimetry in ATel #2693. We observed the source with the 31cm telescope of Greve in Chianti equipped with a back-illuminated SITe SIA502A CCD chip and Johnson-Cousins BVR filters. The comparison stars by Raiteri et al.
Optical follow-up of 4C+21.35 / Nesci, Roberto; F., Montagni. - ELETTRONICO. - (2010), pp. 2708-2708.
Optical follow-up of 4C+21.35
NESCI, Roberto;
2010
Abstract
The blazar 4C+21.35 (PKS 1222+21) was reported by AGILE (ATel #2686) and FermiGST (ATel #2687) to have a Gamma-ray flare; SWIFT X-ray and UV-optical follow-up was reported in Atel #2698; polarimetry in ATel #2693. We observed the source with the 31cm telescope of Greve in Chianti equipped with a back-illuminated SITe SIA502A CCD chip and Johnson-Cousins BVR filters. The comparison stars by Raiteri et al.File allegati a questo prodotto
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