Optical and infrared photometry of the blazar PKS0537-441
arXiv:1011.1100 · doi:10.1088/0067-0049/192/1/12
Abstract
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.
10 pages, 3 figures, in press in ApJS