griz photometry of 3C 454.3 following its extreme gamma-ray flare

Details griz photometry of 3C 454.3 following its extreme gamma-ray flare griz photometry of 3C 454.3 following its extreme gamma-ray flare

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.3047....1k&link_type=abstract

The Astronomer's Telegram, #3047

Astronomy and Astrophysics

Astronomy

2

Optical, Agn, Blazar, Quasar

Scientific paper

Following the extremely bright gamma-ray flare of the blazar 3C 454.3 detected by AGILE (ATel #3034, #3043) and Fermi/LAT (ATel #3041) we have performed photometric observations of the source using a 28cm telescope equipped with a SBIG ST-8 CCD camera and a set of griz (SDSS) filters. The observations conducted on November 18/19 and 19/20, 2010, at the time of peak daily gamma-ray flux (according to the Fermi/LAT public lightcurve), resulted in the following:

JD(UT)	g	r	i	z
2455519.556	14.06	13.37	12.94	12.61
2455520.543	13.86	13.17	12.75	12.42

Accuracy of the measurements is limited by the uncertainty of the magnitude scale calibration which is expected to be less than 0.05m.

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