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arXiv · 1605.03599

Optical flux behaviour of a sample of Fermi blazars

E. J. Marchesini·I. Andruchow·S. A. Cellone·J. A. Combi·L. Zibecchi·J. Martí·G. E. Romero·A. J. Muñoz-Arjonilla·P. Luque-Escamilla·J. R. Sánchez-Sutil
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Abstract

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, PKS1510-089, 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.

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E. J. Marchesini, I. Andruchow, S. A. Cellone, J. A. Combi, L. Zibecchi, J. Martí, G. E. Romero, A. J. Muñoz-Arjonilla, P. Luque-Escamilla, J. R. Sánchez-Sutil. 2016-05-11. Optical flux behaviour of a sample of Fermi blazars. https://doi.org/10.1051/0004-6361%2F201527632

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