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Proceedings Paper

Tomography of active galactic nuclei broad line region: a science case for next-generation extremely long baseline optical interferometry
Author(s): Julien M. Woillez; Hélène Sol; Guy S. Perrin; Olivier Lai
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Paper Abstract

Extragalactic Astronomy is one of the new domains being successfully addressed by the new generation of optical long baseline interferometers. The recent results on the unresolved Seyfert 1 nucleus NGC4151 by Keck Interferometer team and on the partially resolved Seyfert 2 nucleus NGC1068 by VLTI team confirm our current understanding of the Active Galactic Nuclei phenomenology. Once an extra level in increased angular resolution is reached by new observatories (e.g., Optical Hawaiian Array for Nanoradian Astronomy or Overwhelmingly Large Array), it will become possible to study the Broad Line Region of Seyfert 1 nuclei. In this paper, we present key results that interferometry could obtain on the topic, how they compare to an existing technique - reverberation mapping, and we describe a new observational technique that will lead to a tomographic picture of this region.

Paper Details

Date Published: 20 October 2004
PDF: 9 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.551268
Show Author Affiliations
Julien M. Woillez, W.M. Keck Observatory (United States)
Observatoire de Paris-Meudon (France)
Hélène Sol, Observatoire de Paris-Meudon (France)
Guy S. Perrin, Observatoire de Paris-Meudon (France)
Olivier Lai, Canada-France-Hawaii Telescope Corp. (United States)

Published in SPIE Proceedings Vol. 5491:
New Frontiers in Stellar Interferometry
Wesley A. Traub, Editor(s)

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