| Issue |
A&A
Volume 591, July 2016
|
|
|---|---|---|
| Article Number | A21 | |
| Number of page(s) | 7 | |
| Section | Catalogs and data | |
| DOI | https://doi.org/10.1051/0004-6361/201527632 | |
| Published online | 06 June 2016 | |
Optical flux behaviour of a sample of Fermi blazars⋆
1 Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque, B1900FWA La Plata, Argentina
e-mail: ejmarchesini@gmail.com
2 IALP, CONICET-UNLP, CCT La Plata, Paseo del Bosque, B1900FWA La Plata, Argentina
3 IAR, CONICET, CCT La Plata, C.C. No. 5 (1894) Villa Elisa, Buenos Aires, Argentina
4 Departamento de Física (EPS), Universidad de Jaén, Campus Las Lagunillas s/n, A3, 23071 Jaén, Spain
5 Dept. de Ingeniería Mecánica y Minera, EPS de Jaén, Universidad de Jaén, Campus Las Lagunillas s/n, A3-402, 23071 Jaén, Spain
6 Grupo de Investigación FQM-322, Universidad de Jaén, Campus Las Lagunillas s/n, A3-065, 23071 Jaén, Spain
Received: 23 October 2015
Accepted: 14 April 2016
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.
Key words: BL Lacertae objects: general
Differential photometry results used in the statistical analysis reported in Table 2 are only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/591/A21
© ESO, 2016
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