Suzaku observations of Markarian 335: evidence for a distributed reflector

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 characterised 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 AGN, although the shape is significantly flatter when an interval which does not contain any deep dip in the lightcurve 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.

13 pages, 13 figures. Accepted for publication in MNRAS

References in corpus (9)

• Constraining Black Hole Spin Via X-ray Spectroscopy
• XMM-Newton study of the complex and variable spectrum of NGC 4051
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• Energy-dependent variability and the origin of the soft X-ray excess in AGN
• The impact of accretion disk winds on the X-ray spectrum of AGN: Part 1 - XSCORT
• Evidence for relativistic features in the X-ray spectrum of Mrk 335
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Cited by in corpus (14)

• X-ray Absorption and Reflection in Active Galactic Nuclei
• Driving extreme variability: The evolving corona and evidence for jet launching in Markarian 335
• XMM-Newton observations of the Narrow-Line Seyfert 1 galaxy Mrk 335 in an historical low X-ray flux state
• Suzaku observations of Mrk 335: Confronting partial covering and relativistic reflection
• The XMM-Newton view of AGN with intermediate mass black holes
• X-ray Variability of the Seyfert 1 Markarian 335: Power Spectrum and Time Lags
• The Seyfert 1 Galaxy Mrk 335 at a very low flux state: mapping the soft X-ray photoionised gas
• Evidence for an emerging disc wind and collimated outflow during an X-ray flare in the narrow-line Seyfert 1 galaxy Mrk 335
• The XMM-Newton/HST view of the obscuring outflow in the Seyfert Galaxy Mrk 335 observed at extremely low X-ray flux
• Simultaneous spectral and reverberation modelling of relativistic reflection in Mrk 335
• Relationship between X-ray spectral index and X-ray Eddington ratio for Mrk 335 and Ark 564
• Black Hole Spin Measurements Based on a Thin Disc Model with Finite Thickness I. An example study of MCG-06-30-15
• Comparing Reflection and Absorption Models for the Soft X-ray Variability in the NLS1 AGN UGC 11763
• Modelling the energy dependent X-ray variability of Mrk 335