X-RAY VARIABILITY STUDY OF POLAR SCATTERED SEYFERT1 GALAXIES

Authors

  • Tobias Beuchert Dr. Karl Remeis-Observatory, Universität Erlangen-Nürnberg & ECAP, Sternwartstrasse 7, 96049 Bamberg
  • Jörn Wilms Dr. Karl Remeis-Observatory, Universität Erlangen-Nürnberg & ECAP, Sternwartstrasse 7, 96049 Bamberg
  • Matthias Kadler Lehrstuhl für Astronomie, Universität Würzburg, Campus Hubland Nord, Emil-Fischer-Straße 31, 97074 Würzburg
  • Anna Lia Longinotti European Space Astronomy Centre of ESA, PO Box 78, Villanueva de la Cañada, 28691 Madrid
  • Matteo Guainazzi European Space Astronomy Centre of ESA, PO Box 78, Villanueva de la Cañada, 28691 Madrid
  • Giovanni Miniutti Centro de Astrobiología (CSIC-INTA), Dep. de Astrofísica; ESAC, PO Box 78, E-28691 Villanueva de la Cañada, Madrid
  • Ignacio de la Calle European Space Astronomy Centre of ESA, PO Box 78, Villanueva de la Cañada, 28691 Madrid

DOI:

https://doi.org/10.14311/AP.2014.54.0266

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, 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.

Downloads

Download data is not yet available.

Downloads

Published

2014-08-31

Issue

Vol. 54 No. 4 (2014)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

4. ddd

How to Cite

Beuchert, T., Wilms, J., Kadler, M., Longinotti, A. L., Guainazzi, M., Miniutti, G., & de la Calle, I. (2014). X-RAY VARIABILITY STUDY OF POLAR SCATTERED SEYFERT1 GALAXIES. Acta Polytechnica, 54(4), 266-270. https://doi.org/10.14311/AP.2014.54.0266