Long-term photometry of blazars at Abastumani Observatory

Details Long-term photometry of blazars at Abastumani Observatory Long-term photometry of blazars at Abastumani Observatory

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007iaus..238..397k&link_type=abstract

Black Holes from Stars to Galaxies -- Across the Range of Masses. Edited by V. Karas and G. Matt. Proceedings of IAU Symposium #

Physics

2

Scientific paper

We give a brief summary of the ongoing Abastumani Active Galactic Nuclei Monitoring Program started in the May of 1997. More than 100000 frames were already obtained during more than 1350 nights of observations for about 50 target objects, among them X-ray, gamma-ray and optical blazars. All observations were done in the BVRI bands using ST-6 CCD based Photometer attached to the Newtonian focus of 70-cm meniscus telescope and Apogee6E ccd camera at 125-cm telescope. The lightcurves illustrating the activity of selected blazars in R band are presented. Most of objects under study show light variations in optical bands over one magnitude. Largest variations show BL Lacertae and AO 0235+116 and equal to ˜ 4 mag. in R band.

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