Statistical methods for the detection of flows in active galactic nuclei using x-ray spectral lines

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 ≈ 625 ± 35 km s−1 . This velocity differs from a previously reported value by ≈ 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.

Año de publicación:

2014

Keywords:

Fuente:

scopus