Optical observations of TeV blazars: first results

ANDRUCHOW, I.; COMBI, J. A.; CELLONE, S. A.; ROMERO, GUSTAVO E; MART; LUQUE-ESCAMILLA, L. P.; A.J. MUÑOZ-ARJONILLA; SANCHEZ-SUTIL, J.J.

Congreso; Reunion Anual de la Asociacion Argentina de Astronomia; 2007

We report here the first results of a long term optical (V, R) monitoring program of blazars that includes 3 well-known objects: 3C279 (1253-055), CTA102 (2230+114) and 3C454.3 (2251+158). The observations were obtained with the 1.52m Spanish telescope at the Calar Alto Observatory during 2006-2007. Although no significant intra-night variations were detected in any of the objects, we found inter-day variations with amplitudes of ~ 0.15 mag in these gamma-ray blazars.