Suzaku observations of Markarian 335: evidence for a distributed reflector
dc.contributor.author | Larsson, J. | en_US |
dc.contributor.author | Miniutti, G. | en_US |
dc.contributor.author | Fabian, A. C. | en_US |
dc.contributor.author | Miller, J. M. | en_US |
dc.contributor.author | Reynolds, C. S. | en_US |
dc.contributor.author | Ponti, G. | en_US |
dc.date.accessioned | 2010-06-01T20:10:03Z | |
dc.date.available | 2010-06-01T20:10:03Z | |
dc.date.issued | 2008-03-11 | en_US |
dc.identifier.citation | Larsson, J.; Miniutti, G.; Fabian, A. C.; Miller, J. M.; Reynolds, C. S.; Ponti, G. (2008). " Suzaku observations of Markarian 335: evidence for a distributed reflector." Monthly Notices of the Royal Astronomical Society 384(4): 1316-1326. <http://hdl.handle.net/2027.42/73291> | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.issn | 1365-2966 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/73291 | |
dc.description.abstract | We report on a 151-ks net exposure Suzaku observation of the narrow-line Seyfert 1 galaxy Mrk 335. The 0.5–40 keV spectrum contains a broad Fe line, a strong soft excess below about 2 keV and a Compton hump around 20–30 keV. We find that a model consisting of a power law and two reflectors provides the best fit to the time-averaged spectrum. In this model, an ionized, heavily blurred, inner reflector produces most of the soft excess, while an almost neutral outer reflector (outside ∼ 40 r g ) produces most of the Fe line emission. The spectral variability of the observation is characterized by spectral hardening at very low count rates. In terms of our power-law + two-reflector model it seems like this hardening is mainly caused by pivoting of the power law. The rms spectrum of the entire observation has the curved shape commonly observed in active galactic nuclei, although the shape is significantly flatter when an interval which does not contain any deep dip in the light curve is considered. We also examine a previous 133-ks XMM–Newton observation of Mrk 335. We find that the XMM–Newton spectrum can be fitted with a similar two-reflector model as the Suzaku data and we confirm that the rms spectrum of the observation is flat. The flat rms spectra, as well as the high-energy data from the Suzaku PIN detector, disfavour an absorption origin for the soft excess in Mrk 335. | en_US |
dc.format.extent | 477035 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | Journal compilation © 2008 RAS | en_US |
dc.subject.other | Galaxies: Active | en_US |
dc.subject.other | Galaxies: Seyfert | en_US |
dc.subject.other | Galaxies: Individual: Mrk 335 | en_US |
dc.subject.other | X-rays: Galaxies | en_US |
dc.title | Suzaku observations of Markarian 335: evidence for a distributed reflector | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Astronomy and Astrophysics, The University of Michigan, 500 Church Street, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA | en_US |
dc.contributor.affiliationother | Department of Astronomy, University of Maryland, College Park, MD 20742, USA | en_US |
dc.contributor.affiliationother | Dipartimento di Astronomia dell' UniversitÁ degli Studi di Bologna, via Ranzani I, I-40127 Bologna, Italy | en_US |
dc.contributor.affiliationother | IASF/INAF Sezione di Bologna, via Gobetti 101, I-40129 Bologna, Italy | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/73291/1/j.1365-2966.2008.12844.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2966.2008.12844.x | en_US |
dc.identifier.source | Monthly Notices of the Royal Astronomical Society | en_US |
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