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An Adaptive Optics Search for Binaries in the Orion Nebula Cluster

  • Part III Star Formation and Brown Dwarfs
  • Conference paper
  • First Online:
Science with Adaptive Optics

Part of the book series: ESO Astrophysics Symposia ((ESO))

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Abstract

We report on the results of a binary survey in the outer parts of the Orion Nebula Cluster, 0.7 to 2 pc from the cluster center. The results should help to decide if the binary formation rate was lower in Orion than in Taurus-Auriga, or if many binaries formed initially, but were destroyed in close stellar encounters. We find that the binary frequency of low-mass stars does not depend on the distance to the cluster center. The companion star frequency of intermediate- to high-mass stars shows a trend to decrease with cluster radius, but the statistical significance of this trend is rather weak.

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Authors and Affiliations

  1. Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany

    Rainer Köhler

  2. European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany

    Monika G. Petr-Gotzens

  3. Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany

    Mark McCaughrean

  4. Laboratoire d’Astrophysique de Grenoble, CNRS/UJF UMR 5571, 414 rue de la Piscine, BP 53, 38041 Grenoble Cedex 9, France

    Jerome Bouvier

  5. Division of Astronomy and Astrophysics, UCLA, Los Angeles, CA 90095-1562, USA

    Gaspard Duchêne

  6. Sterrewacht Leiden, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands

    Andreas Quirrenbach

Authors
  1. Rainer Köhler
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  2. Monika G. Petr-Gotzens
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  3. Mark McCaughrean
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  4. Jerome Bouvier
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  5. Gaspard Duchêne
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  6. Andreas Quirrenbach
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Editor information

Wolfgang Brandner Markus E. Kasper

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Köhler, R., Petr-Gotzens, M.G., McCaughrean, M., Bouvier, J., Duchêne, G., Quirrenbach, A. An Adaptive Optics Search for Binaries in the Orion Nebula Cluster. In: Brandner, W., Kasper, M.E. (eds) Science with Adaptive Optics. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/10828557_32

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  • DOI: https://doi.org/10.1007/10828557_32

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-25034-0

  • Online ISBN: 978-3-540-31605-3

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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