Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2708....1n&link_type=abstract
The Astronomer's Telegram, #2708
Astronomy and Astrophysics
Astronomy
1
Optical, Agn, Blazars, Gamma-Ray Bursts, Quasars
Scientific paper
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.
Montagni Franco
Nesci Roberto
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