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

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

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..275..190a&link_type=abstract

Jets at all Scales, Proceedings of the International Astronomical Union, IAU Symposium, Volume 275, p. 190-191

Astronomy and Astrophysics

Astronomy

Techniques: Photometric - Polarimetric, Bl Lacertae Objects: Individual (Pg 1553+113)

Scientific paper

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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