Browsing by Author "Peceur, N. W."

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    The optical polarization of the blazar PKS 2155–304 during an optical flare in 2010
    (Oxford University Press, 2020) Taylor, A. R.; Peceur, N. W.; Kraan-Korteweg, R. C.
    An analysis is presented of the optical polarimetric and multicolour photometric (BVRJ) behaviour of the blazar PKS 2155–304 during an outburst in 2010. This flare develops over roughly 117 d, with a flux doubling time τ ∼ 11 d, which increases from blue to red wavelengths. The polarization angle is initially aligned with the jet axis but rotates by roughly 90° as the flare grows. Two distinct states are evident at low and high fluxes. Below 18 mJy, the polarization angle takes on a wide range of values, without any clear relation to the flux. In contrast, there is a positive correlation between the polarization angle and flux above 18 mJy.