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High resolution spectroscopy of Seyfert warm absorbers with XMM-Newton |
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| Authors: | AJ Blustin G Branduardi-Raymont E Behar JS Kaastra MJ Page SM Kahn M Sako KC Steenbrugge |
| Institution: | aMullard Space Science Laboratory, MSSL, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, England bPhysics Department, Technion, Haifa 32000, Israel cSRON National Institute for Space Research, Sorbonnelaan 2, 3584 CA, Utrecht, Netherlands dKavli Institute for Particle Astrophysics and Cosmology, SLAC, 2575 Sand Hill Road, Menlo Park, CA 94025, USA |
| Abstract: | We present results from the analysis of an XMM-Newton observation of the Seyfert 1 galaxy NGC 7469, the first high resolution X-ray spectrum of this source. The Reflection Grating Spectrometer (RGS) spectrum has several narrow absorption and emission lines of O, N, C and Ne, originating from gas at a range of ionisation parameters, from log ξ 1.6 to log ξ?2 (where ξ has the units erg cm s?1). We demonstrate that the ionisation state of the warm emitter is consistent with that of the high-ionisation phase of the warm absorber, and compare the warm absorber in this object with those in other sources. |
| Keywords: | Techniques: spectroscopic Galaxies: individual: NGC 7469 Galaxies: active Galaxies: Seyfert X-rays: galaxies |
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