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A VO-based solution to the origin of soft X-ray emission in obscured AGN

Published online by Cambridge University Press:  01 August 2006

Matteo Guainazzi ,
I. Barbarisi ,
Stefano Bianchi ,
Miguel Cerviño ,
Pedro Osuna  and
Jesus Salgado
Matteo Guainazzi
Affiliation:
ESA European Space Astronomy Center, Madrid, Spain email: Matteo.Guainazzi@sciops.esa.int
I. Barbarisi
Affiliation:
ESA European Space Astronomy Center, Madrid, Spain email: Matteo.Guainazzi@sciops.esa.int
Stefano Bianchi
Affiliation:
ESA European Space Astronomy Center, Madrid, Spain email: Matteo.Guainazzi@sciops.esa.int
Miguel Cerviño
Affiliation:
Istituto de Astrofísica de Andalucia, Granada, Spain
Pedro Osuna
Affiliation:
ESA European Space Astronomy Center, Madrid, Spain email: Matteo.Guainazzi@sciops.esa.int
Jesus Salgado
Affiliation:
ESA European Space Astronomy Center, Madrid, Spain email: Matteo.Guainazzi@sciops.esa.int
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Recent high-resolution imaging observations with Chandra have unveiled a striking similarity between the Narrow Line Region (NLR) and the diffuse soft (0.1-keV) emission-line dominated X-ray morphologies in a number of obscured Active Galactic Nuclei (AGN) on scales as large as 0.1-2kpc (Bianchi et al., 2006, A&, 448, 499). This discovery suggests a strong link between these components, which points toward a common physical origin. AGN photo-ionization is a natural explanation, consistent with soft X-ray high-resolution spectroscopy (Guainazzi & Bianchi, 2006, submitted). However, the possibility that the bulk of this component is generated by ‘local’ photo-ionization induced by shocks in the interaction between a radio jet and the interstellar matter, or by mechanical heating in regions of intense star formation cannot be ruled out yet.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 582
Copyright
Copyright © International Astronomical Union 2007