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Tracking the Complex Absorption in NGC 2110 with Two Suzaku Observations

Rivers, Elizabeth and Markowitz, Alex and Rothschild, Richard and Bamba, Aya and Fukazawa, Yasushi and Okajima, Takashi and Reeves, James and Terashima, Yuichi and Ueda, Yoshihiro (2014) Tracking the Complex Absorption in NGC 2110 with Two Suzaku Observations. Astrophysical Journal, 786 (2). Art. No. 126. ISSN 0004-637X.

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We present spectral analysis of two Suzaku observations of the Seyfert 2 galaxy, NGC 2110. This source has been known to show complex, variable absorption which we study in depth by analyzing these two observations set 7 yr apart and by comparing them to previously analyzed observations with the XMM-Newton and Chandra observatories. We find that there is a relatively stable, full-covering absorber with a column density of ~3× 10^(22) cm^(–2), with an additional patchy absorber that is likely variable in both column density and covering fraction over timescales of years, consistent with clouds in a patchy torus or in the broad line region. We model a soft emission line complex, likely arising from ionized plasma and consistent with previous studies. We find no evidence for reflection from an accretion disk in this source with contribution from neither relativistically broadened Fe Kα line emission, nor from a Compton reflection hump.

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Additional Information:© 2014 The American Astronomical Society. Received 2013 November 18; accepted 2014 March 7; published 2014 April 24. This research has made use of data obtained from the Suzaku satellite, a collaborative mission between the space agencies of Japan (JAXA) and the USA (NASA). This work has made use of HEASARC online services, supported by NASA/GSFC, and the NASA/IPAC Extragalactic Database, operated by JPL/ California Institute of Technology under contract with NASA. This research was supported by Grant NNX13AF33G.
Funding AgencyGrant Number
Goddard Space Flight CenterUNSPECIFIED
NASA/IPAC Extragalactic Database (NED)UNSPECIFIED
Subject Keywords:galaxies: active; galaxies: individual (NGC 2110); X-rays: galaxies
Issue or Number:2
Record Number:CaltechAUTHORS:20140613-085109259
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Official Citation:Tracking the Complex Absorption in NGC 2110 with Two Suzaku Observations Elizabeth Rivers et al. 2014 ApJ 786 126
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46259
Deposited By: Tony Diaz
Deposited On:13 Jun 2014 19:24
Last Modified:03 Oct 2019 06:42

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