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Hans Publishers, Astronomy & Astrophysics, 2(445), p. 451-456

DOI: 10.1051/0004-6361:20054013

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XMM-Newton observation of the bright Seyfert 1 galaxy, MCG+8-11-11

Journal article published in 2005 by G. Matt, S. Bianchi ORCID, A. De Rosa, P. Grandi, G. C. Perola
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Red circle
Preprint: archiving forbidden
Red circle
Postprint: archiving forbidden
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

We report on the XMM-Newton observation of the bright Seyfert 1 galaxy, MCG+8-11-11. Data from the EPIC/p-n camera, the Reflection Gratings Spectrometers (RGS) and the Optical Monitor (OM) have been analyzed. The p-n spectrum is well fitted by a power law, a spectrally unresolved Fe Kalpha line, a Compton reflection component (whose large value, when compared to the iron line equivalent width, suggests iron underabundance), and absorption by warm material. Absorption lines are apparent in the RGS spectra, but their identification is uncertain and would require large matter velocities. The UV fluxes measured by the OM are well above the extrapolation of the X-ray spectrum, indicating the presence of a UV bump. ; Comment: 7 pages. Accepted for publication in Astronomy & Astrophysics