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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Statistical Methods for the Detection of Flows in Active Galactic Nuclei Using X-Ray Spectral Lines
verfasst von : Luis F. Pérez, José M. Ramírez
Erschienen in: Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment
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Abstract
Using robust statistical methods, we are able to detect and identify absorption lines in the X-ray spectra of quasars and active galactic nuclei taking as reference the Seyfert 1 galaxy NGC 3783. The high resolution spectrum of this object shows evidence of partially ionized gas outflowing from the centre of the system at velocities of \(\approx 625\) \(\pm \) 35 km \(\mathrm{s}^{-1}\). This velocity differs from a previously reported value by \(\approx 6\) %. The understanding of these flows is important to draw a general picture of the feedback observed between the analyzed objects and the host galaxy.