Optical flux behaviour of a sample of Fermi blazars

MARCHESINI, E. J.; ANDRUCHOW, I.; CELLONE, S. A.; COMBI, J. A.; ZIBECCHI, L.; MARTÍ, J.; ROMERO, G. E.; MUÑOZ-ARJONILLA, A. J.; LUQUE-ESCAMILLA, P.; SÁNCHEZ-SUTIL, J. R.

ASTRONOMY AND ASTROPHYSICS

EDP SCIENCES S A

Lugar: Paris; Año: 2016 vol. 591 p. 1 - 7

0004-6361

Aims. We aim at investigating the time-behaviour of a sample of gamma-ray blazars. We present the results from a 13 month-long optical photometry monitoring campaign of the blazars PKS 0048−097, PKS 0754+100, [HB89] 0827+243, PKS 0851+202, PKS 1253−055, PKS 1510−089, PKS 1749+096, PKS 2230+114 and PKS 2251+158.Methods. We analyse the variability of each object, focusing on different time-scales (long term, short term, and microvariability), in an attempt to achieve a statistical comparison of the results.Results. After applying a geometric model to explain the variability results, we found that it is possible that a slight change in the direction of the jet generates the variations detected in some objects during this campaign.