The parsec scale region of Active Galactic Nuclei in the IR

Details The parsec scale region of Active Galactic Nuclei in the IR The parsec scale region of Active Galactic Nuclei in the IR

2004-06-29

arxiv.org/abs/astro-ph/0406653v1

Astronomy and Astrophysics

Astrophysics

4 pages, 6 color figures, To appear in the Proceedings of the IAU Symp. 222: "The Interplay among Black Holes, Stars and ISM i

Scientific paper

10.1017/S1743921304001450

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 1566, show a "clean" core environment. At the very center, a central compact region of about 2 pc scale is resolved in Circinus but not in the other cases challenging thus the universal presence of the putative obscuring torus.

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