The peculiar megamaser AGN NGC 1194: Comparison with the warped disk candidates NGC 1068 and NGC 4258

We analyze the X‐ray properties of the Compton‐thick Seyfert 1.9 radio quiet AGN in NGC 1194 using INTEGRAL (ISGRI), XMM‐Newton (EPIC), Swift (BAT and XRT), and Suzaku (XIS) observations. There is a set of Fe‐K lines in the NGC 1194 spectrum with complex relativistic profiles that can be considered...

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Bibliographic Details
Published in:Astronomische Nachrichten 2016-02, Vol.337 (1-2), p.96-100
Main Authors: Fedorova, E., Vasylenko, A., Hnatyk, B. I., Zhdanov, V. I.
Format: Article
Language:English
Subjects:
Accretion disks
Astrophysics
Disks
Evolution
galaxies: active
galaxies: individual (NGC 1194)
galaxies: nuclei
Integrals
Iron
Radio
Stars & galaxies
X-rays
XMM (spacecraft)
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Summary:We analyze the X‐ray properties of the Compton‐thick Seyfert 1.9 radio quiet AGN in NGC 1194 using INTEGRAL (ISGRI), XMM‐Newton (EPIC), Swift (BAT and XRT), and Suzaku (XIS) observations. There is a set of Fe‐K lines in the NGC 1194 spectrum with complex relativistic profiles that can be considered as a sign of either a warped Bardeen‐Petterson accretion disk or double black hole. We compare our results on NGC 1194 with two other megamaser warped disk candidates, NGC 1068 and NGC 4258, to trace out the other properties which can be typical for AGNs with warped accretion disks. To finally confirm or disprove the double black‐hole hypotheses, further observations of the iron lines and their evolution of their shape with time are necessary. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0004-6337
1521-3994
DOI:10.1002/asna.201512272