Optical flux behaviour of a sample of Fermi blazars

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

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.