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Proceedings Paper

High angular observations of active galactic nuclei using PUEO, the CFHT adaptive optics system
Author(s): Daniel Rouan; Olivier Lai; Francois J. Rigaut; D. Alloin
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Paper Abstract

We present diffraction-limited near-IR images in J, H and K of the nucleus of several AGNs obtained with PUEO, the Adaptive Optics system of CFHT. Thanks to the excellent sensitivity of the wavefront sensor, galactic nuclei as faint as mV equals 15 can be observed at a resolution of 0.12- 0.18 inch. IN NGC 1068, the Seyfert 2 prototype, the achieved resolution reveals: a) a belt which is most probably the trace of warm dust in the torus of gas and b) a S-shaped feature which is likely an extremely compact barred spiral structure. In Mkn 231, an Ultra Luminous galaxy, we resolve the very central peak in a bright point source with colors of an actual AGN and fainter source (B) at 0.15 arcsec north, with colors consistent with a giant HII complex of violent star formation. Arp 299, another Ultra- Luminous IR Galaxy, is a merger. Our K image reveals that none of the nuclei are un resolved; the presence of a QSO as the primary source of energy is thus dubious. We also discovered many super-clusters of newly formed stars with extremely high luminosities.

Paper Details

Date Published: 11 September 1998
PDF: 4 pages
Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321674
Show Author Affiliations
Daniel Rouan, DESPA/Observatoire de Paris-Meudon (France)
Olivier Lai, Canada-France-Hawaii Telescope Corp. (United States)
Francois J. Rigaut, European Southern Observatory (United States)
D. Alloin, Service d'Astrophysique/CNRS (France)

Published in SPIE Proceedings Vol. 3353:
Adaptive Optical System Technologies
Domenico Bonaccini; Robert K. Tyson, Editor(s)

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