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|Title:||An XMM-Newton observation of Mkn 3 - a Seyfert galaxy just over the edge|
|Authors:||Pounds, Kenneth A.|
Page, Kim L.
|Citation:||Monthly Notices of the Royal Astronomical Society, 2005, 360, pp.1123-1131.|
|Abstract:||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.|
|Rights:||2005 Royal Astronomical Society (RAS). Deposited with reference to the publisher's archiving policy available on journal's website.|
|Description:||The definitive version is available at www.blackwell-synergy.com.|
|Appears in Collections:||Published Articles, Dept. of Physics and Astronomy|
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