BeppoSAX observations of the quasar Markarian 205

P. Favre; P. -O. Petrucci; V. Beckmann; T. J. -L. Courvoisier

doi:10.1016/j.nuclphysbps.2004.04.026

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arXiv · astro-ph/0403214

BeppoSAX observations of the quasar Markarian 205

P. Favre·P. -O. Petrucci·V. Beckmann·T. J. -L. Courvoisier

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Abstract

We present the first BeppoSAX observation (0.1 to 220 keV) of the quasar Mrk 205. We have searched for the unusual Fe line profile claimed in the XMM-Newton spectrum which has been widely discussed in recent literature. We find no evidence for a broad, ionized Fe line component in our data. We detect for the first time a Compton hump in this object. Besides, when this component is included in the fit, the line strength diminishes, in agreement with a recent re-analysis of the XMM-Newton data, but with better constraints on the reflection component thanks to the PDS instrument (15-220 keV). We interpret this fact as another indication for illumination of a distant and cold material rather than reprocessing in the highly ionized inner parts of an accretion disk. We cannot constrain the presence of a high energy cutoff but we confirm the existence of a variable soft excess (one year timescale).

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P. Favre, P. -O. Petrucci, V. Beckmann, T. J. -L. Courvoisier. 2004-03-09. BeppoSAX observations of the quasar Markarian 205. https://doi.org/10.1016/j.nuclphysbps.2004.04.026

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