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X-Ray Warm Absorber Variability of the Seyfert Galaxy Arakelian 564
DOI: 10.1007/s10511-019-09583-6
Bibcode: 2019Ap.....62..300K
Nouh, M. I.; Korany, B.
We studied the variability of warm absorber clouds of ionized gas within AGN for the Seyfert 1 galaxy Arakelian 564. The X-ray spectra for four XMM-Newton observations of this object are analyzed using the EPIC and the RGS instruments. These four observations covered 11 years. The ionization parameter ξ of the absorbing matter changed between obse…
2019
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Astrophysics
XMM-Newton
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