Principal component analysis of the X-ray variability in NGC 7469

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dc.creatorBlustin, A. J.
dc.creatorFuerst, S. V.
dc.creatorBranduardi-Raymont, G.
dc.creatorPage, M. J.
dc.creatorBehar, E.
dc.creatorKaastra, J. S.
dc.date2005-10-26
dc.date.accessioned2026-07-07T06:44:02Z
dc.date.available2026-07-07T06:44:02Z
dc.descriptionWe apply Principal Component Analysis (PCA) to study the variability of the X-ray continuum in the Seyfert 1 galaxy NGC 7469. The PCA technique is used to separate out linear components contributing to variability between multiple datasets; the technique is often used in analysis of optical spectra, but has rarely been applied to AGN X-ray spectroscopy. Running a PCA algorithm on 0.3-10 keV EPIC data from a 150 ks XMM-Newton observation of NGC 7469, we describe the spectral components extracted and evaluate the usefulness of the PCA technique for understanding the X-ray continuum in AGN.
dc.description2 pages, 3 figures, presented at The X-ray Universe 2005, to appear in the conference proceedings
dc.identifierhttps://arxiv.org/abs/astro-ph/0510754
dc.identifierhttp://arxiv.org/abs/astro-ph/0510754
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102643
dc.subjectAstrophysics
dc.titlePrincipal component analysis of the X-ray variability in NGC 7469
dc.typetext

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