An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 1 : statistical properties
Brindle, C.; Hough, J.; Bailey, J.; Axon, D.J.; Ward, M.J.; Sparks, W.; McLean, I.
Citation: Brindle , C , Hough , J , Bailey , J , Axon , D J , Ward , M J , Sparks , W & McLean , I 1990 , ' An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 1 : statistical properties ' Monthly Notices of the Royal Astronomical Society , vol 244 , no. 4 , pp. 577-603 .
The present broad-band and near-IR flux density and polarization measurements of a sample of 71 Seyfert galaxies and three broad-line radio galaxies confirms earlier indications that the polarization of Seyferts is generally low in the V-band and at longer wavelengths. A tendency is noted for the polarization to be parallel to the galaxy optical or dust-lane axis; previous indications that the polarization of Seyfert 2s tends to be perpendicular to the radio axis are confirmed. In the second part of this work, the 0.44-2.2 micron wavelength dependence of polarization for this sample of 71 Seyfert and three broad-line radio galaxies is discussed. Most objects in the sample exhibit decreasing polarization with increasing wavelength, as may be expected in polarization induced by either dichroic absorption or scattering.
Copyright Royal Astronomical Society. [Full text of this article is not available in the UHRA]
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