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Paper: Ten Years Optical Photometry of TeV BL Lacertae Objects
Volume: 408, The Starburst−AGN Connection
Page: 266
Authors: Kurtanidze, O.M.; Tetradze, S.D.; Richter, G.M.; Nikolashvili, M.G.; Kimeridze, G.N.; Sigua, L.A.
Abstract: We present optical R band photometry for twelve extragalactic Xray BL Lacertae objects identified in the Einstein Slew Survey. Six of them 1ES 0229+200, 1ES 0806+524, 1ES 1011+496, 1ES 1426+428, 1ES 1959+650 and 1ES 2344+514 were later detected as very high-energy γ-ray sources. All these sources have been observed with ST-6 ccd camera attached to the Newtonian focus of the 70-cm meniscus telescope. These data provide optical information on sources that have rarely or never been observed in the optical bands. Variability in R band on long time-scales within 0.10-1.25 magnitude was found for all of the studied sources.
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