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Issue A&A
Volume 424, Number 2, September III 2004
Page(s) 613 - 618
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20034215



A&A 424, 613-618 (2004)
DOI: 10.1051/0004-6361:20034215

A search for circumstellar dust disks with ADONIS

O. Schütz1, H. Böhnhardt1, E. Pantin2, M. Sterzik3, S. Els4, J. Hahn5 and Th. Henning1

1  Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
    e-mail: schuetz@mpia.de
2  DSM/DAPNIA/Service d'Astrophysique, CEA/Saclay, 91191 Gif-sur-Yvette, France
3  European Southern Observatory, Alonso de Cordova 3107, Casilla 19001, Santiago 19, Chile
4  Isaac-Newton-Group of Telescopes, Apartado de Correos 321, 38700 Santa Cruz de La Palma, Spain
5  Institute for Computational Astrophysics, Department of Astronomy and Physics, Saint Mary's University, Halifax, NS, B3H 3C3, Canada

(Received 20 August 2003 / Accepted 27 May 2004)

Abstract
We present results of a coronographic imaging search for circumstellar dust disks with the Adaptive Optics Near Infrared System (ADONIS) at the ESO 3.6 m telescope in La Silla (Chile). 22 candidate stars, known to be orbited by a planet or to show infrared excess radiation, were examined for circumstellar material. In the PSF-subtracted images no clear disk was found. We further determine the detection sensitivities and outline how remaining atmospheric fluctuations still can hamper adaptive optics observations.


Key words: stars: planetary systems: protoplanetary disks -- instrumentation: adaptive optics -- techniques: image processing -- atmospheric effects -- methods: observational -- stars: circumstellar matter

SIMBAD Objects



© ESO 2004


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