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The parsec-scale region of active galactic nuclei in the IR

Published online by Cambridge University Press:  24 November 2004

M. Almudena Prieto
Affiliation:
Max-Planck Institute for Astronomy, Heidelberg, Germany email: prieto@mpia.de
Klaus Meisenheimer
Affiliation:
Max-Planck Institute for Astronomy, Heidelberg, Germany email: prieto@mpia.de
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Abstract

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First results from the AGN-Heidelberg program aimed at spatially resolving the central pc region of the closest Active Galactic Nuclei are presented. The core region of prototype active nuclei are clearly unveiled at IR waves and at distances from the nucleus – few pc- where circumnuclear starforming regions appear not to be present. Within that perspective, classical active nuclei as Circinus and NGC 1097, reveal with unprecedented detail clear channels of material being driven to the core whereas others as Centaurus A and NGC 5506, show a “clean” core environment. At the very center, a central compact region of ∼2 pc scale is resolved in Circinus but not in the other cases challenging thus the universal presence of the putative obscuring torus.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
ORAL CONTRIBUTIONS
Copyright
© 2004 International Astronomical Union