X-RAY VARIABILITY STUDY OF POLAR SCATTERED SEYFERT1 GALAXIES
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articlePeer-reviewed
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Author
Beuchert, Tobias
Wilms, Jörn
Kadler, Matthias
Longinotti, Anna Lia
Guainazzi, Matteo
Miniutti, Giovanni
de la Calle, Ignacio
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Creative Commons Attribution 4.0 International Licensehttp://creativecommons.org/licenses/by/4.0/
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We study 12 Seyfert 1 galaxies with a high level of optical polarization. Optical light emerging from the innermost regions is predominantly scattered in a polar region above the central engine directly in our line of sight. These sources show characteristics of Seyfert 2 galaxies, e.g. polarized broad lines. The polarization signatures suggest a viewing angle of 45°, classifying them as intermediate Seyfert 1/2 types. The unified model predicts this line of sight to pass through the outer layer of the torus resulting in significant soft X-ray variability due to a strongly varying column density. The aim is to find evidence for this geometrical assumption in the spectral variability of all available historical observations of these sources by XMM-Newton and Swift.
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