Tomography of active galactic nuclei broad line region: a science case for next-generation extremely long baseline optical interferometry

Julien M. Woillez; Hélène Sol; Guy S. Perrin; Olivier Lai

doi:10.1117/12.551268

20 October 2004 Tomography of active galactic nuclei broad line region: a science case for next-generation extremely long baseline optical interferometry

Julien M. Woillez, Hélène Sol, Guy S. Perrin, Olivier Lai

Author Affiliations +

Proceedings Volume 5491, New Frontiers in Stellar Interferometry; (2004) https://doi.org/10.1117/12.551268
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

Citation Download Citation

Julien M. Woillez, Hélène Sol, Guy S. Perrin, and Olivier Lai "Tomography of active galactic nuclei broad line region: a science case for next-generation extremely long baseline optical interferometry", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); https://doi.org/10.1117/12.551268

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