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High-temporal resolution optical observations of the gamma-ray blazar PG 1553+113

  • I. Andruchow (a1) (a2), J. A. Combi (a3), S. A. Cellone (a1) (a2), A. J. Muñoz-Arjonilla (a4), G. E. Romero (a1) (a3) and J. Martí (a4)...

Abstract

We present here the results of an observational photo-polarimetry campaign at optical wavelengths of the blazar PG 1553+113, which was recently detected at very high energies (>100 GeV) by the H.E.S.S and MAGIC γ-ray experiments.

Our high-temporal resolution data show significant variations in the linear polarization percentage and position angle at inter-night time-scales, while at shorter (intra-night) time-scales both parameters varied less significantly, if at all. Simultaneous differential photometry (at the B and R bands) shows no significant variability in the total optical flux.

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High-temporal resolution optical observations of the gamma-ray blazar PG 1553+113

  • I. Andruchow (a1) (a2), J. A. Combi (a3), S. A. Cellone (a1) (a2), A. J. Muñoz-Arjonilla (a4), G. E. Romero (a1) (a3) and J. Martí (a4)...

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