The lightcurves below were obtained using the 1.03 m telescope at Tuorla Observatory, Finland, and the 35cm telescope at the KVA observatory on La Palma, Canary islands, Spain. All data were taken using the R-filter.
Most of the monitored sources are BL Lacertae objects listed in Costamante & Ghisellini (2002, A&A 384, 56) as potential TeV sources (the "TeV BL Lacs"). In addition, data of current monitoring campaign targets are shown ("Other blazars").
Each plot shows two light curves: the object (red) and a control star (green). The latter is used to check possible problems with the comparison star and the overall quality of the photometry. The data presented are one-hour averages.
Further notes on the plots :
Kari Nilsson
Updated 05 Sept 2010
Latest data points are from 05 Sept 2010
Observers : A. Berdyugin, S. Ciprini, A. Halkola, T. Hovatta, V. Kadenius, E. Lindfors, K. Nilsson, P. Nurmi, L. Ostorero, M. Pasanen, R. Reinthal, J. Sainio, L. O. Takalo, C. Villforth
NOTE! These data are unpublished and still preliminary!
TeV BL Lacs |
Other BL Lacs |
Other AGN |
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Background picture credit : Rami Rekola 2001