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An XMM-Newton observation of Mkn 3 - a Seyfert galaxy just over the edge

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journal contribution
posted on 02.11.2006, 17:27 by Kenneth A. Pounds, Kim L. Page
A 100-ks XMM–Newton observation of the nearby Seyfert 2 galaxy Mkn 3 offers a unique opportunity to explore the complexity of its X-ray spectrum. We find the ∼3–8 keV continuum to be dominated by reflection from cold matter, with fluorescent K-shell lines detected from Ni, Fe, Ca, Ar, S, Si and Mg. At higher energies an intrinsic power-law continuum, with canonical Seyfert 1 photon index, is seen through a near-Compton-thick cold absorber. A soft excess below ∼3 keV is found to be dominated by line emission from an outflow of ‘warm’ gas, photoionized and photoexcited by the intrinsically strong X-ray continuum. Measured blueshifts in the strong Fe Kα and OVII and OVIII emission lines are discussed in terms of the properties of the putative molecular torus and ionized outflow.

History

Citation

Monthly Notices of the Royal Astronomical Society, 2005, 360, pp.1123-1131.

Version

VoR (Version of Record)

Published in

Monthly Notices of the Royal Astronomical Society

Publisher

Blackwell

issn

0035-8711

eissn

1365-2966

Copyright date

2005

Available date

02/11/2006

Publisher version

http://www.wiley.com/bw/journal.asp?ref=0035-8711

Notes

The definitive version is available at www.blackwell-synergy.com.

Language

en