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arXiv · 1309.6674

X-ray Variability Study of Polar Scattered Seyfert 1 Galaxies

Tobias Beuchert·Jörn Wilms·Matthias Kadler·Anna Lia Longinotti·Matteo Guainazzi·Giovanni Miniutti·Ignacio de la Calle
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Abstract

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 such as, e.g., polarized broad lines. The polarization signatures suggest a viewing angle of 45 degrees 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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Tobias Beuchert, Jörn Wilms, Matthias Kadler, Anna Lia Longinotti, Matteo Guainazzi, Giovanni Miniutti, Ignacio de la Calle. 2013-09-25. X-ray Variability Study of Polar Scattered Seyfert 1 Galaxies. https://arxiv.org/abs/1309.6674

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