The Physics of Blazar Optical Emission Regions II: Magnetic Field Orientation, Viewing Angle and Beaming

Details The Physics of Blazar Optical Emission Regions II: Magnetic Field Orientation, Viewing Angle and Beaming The Physics of Blazar Optical Emission Regions II: Magnetic Field Orientation, Viewing Angle and Beaming

2000-10-11

arxiv.org/abs/astro-ph/0010215v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures To be published in "Blazar Demographics and Physics", ASP Conf. Series, P. Padovani and C. M. Urry eds

Scientific paper

For a sample of 51 blazars with extensive optical polarization data, we used circular statistics to calculate the scatter among the polarization position angles for each object. We found that this scatter is correlated with the radio core dominance. We compared this relationship with the predictions of a simple transverse shock model. The result suggests that blazar jets are likely to cover a wide range of speeds consistent with those derived from observations of superluminal motion.

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