Optical and infrared photometry of the blazar PKS0537-441

Details Optical and infrared photometry of the blazar PKS0537-441 Optical and infrared photometry of the blazar PKS0537-441

2010-11-04

arxiv.org/abs/1011.1100v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

10 pages, 3 figures, in press in ApJS

Scientific paper

We present a large collection of photometric data on the Blazar PKS 0537-441 in the VRIJHK bands taken in 2004-2009. At least three flare-like episodes with months duration, and >3 mag amplitude are apparent. The spectral energy distribution is consistent with a power law, and no indication of a thermal component is found. We searched for short time scale variability, and an interesting event was identified in the J band, with a duration of ~25 minutes.

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