Optical and infrared photometry of the blazar PKS0537-441

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

References in corpus (2)

• Multifrequency monitoring of the blazar 0716+714 during the GASP-WEBT-AGILE campaign of 2007
• Simultaneous Swift and REM monitoring of the blazar PKS0537-441 in 2005

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• Intranight optical variability of γ-ray loud Narrow Line Seyfert 1 galaxies
• Long-term monitoring of PKS 0537-441 with Fermi-LAT and multiwavelength observations
• Rapid optical variability in blazar S5 0716+71 during 2010 March
• Rapid optical variability of TeV blazars
• A unified model for orphan and multi-wavelength blazar flares
• Short Timescale Photometric and Polarimetric Behavior of two BL Lacertae Type Objects
• Multi-color optical monitoring of ten blazars from 2005 to 2011
• Search for Intra-day Optical Variability in $\gamma$-ray--loud Blazars S5 0716+714 and 3C 273
• Search for intra-day optical variability in Mrk 501
• Revisiting the TeV flare of PKS 2155-304 in 2006