High resolution spectroscopy of Seyfert warm absorbers with XMM-Newton
| Autor: | A. J. Blustin, S. M. Kahn, Graziella Branduardi-Raymont, M. J. Page, M. Sako, Ehud Behar, Jelle Kaastra, Katrien C. Steenbrugge |
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| Rok vydání: | 2004 |
| Předmět: |
Physics
Atmospheric Science Active galactic nucleus Resolution (electron density) Aerospace Engineering Astronomy Astronomy and Astrophysics Astrophysics Galaxy Geophysics Space and Planetary Science Ionization Reflection (physics) General Earth and Planetary Sciences Emission spectrum Absorption (electromagnetic radiation) Spectroscopy |
| Zdroj: | Advances in Space Research. 34:2561-2565 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2003.02.083 |
| Popis: | 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 xisimilar to1.6 to log xisimilar to-2 (where xi 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. (C) 2004 Published by Elsevier Ltd on behalf of COSPAR. |
| Databáze: | OpenAIRE |
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