A hot compact dust disk around a massive young stellar object

Stefan Kraus (), Karl-Heinz Hofmann, Karl M. Menten, Dieter Schertl, Gerd Weigelt, Friedrich Wyrowski, Anthony Meilland, Karine Perraut, Romain Petrov, Sylvie Robbe-Dubois, Peter Schilke and Leonardo Testi
Additional contact information
Stefan Kraus: University of Michigan
Karl-Heinz Hofmann: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Karl M. Menten: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Dieter Schertl: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Gerd Weigelt: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Friedrich Wyrowski: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Anthony Meilland: Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Karine Perraut: Laboratoire d'Astrophysique de Grenoble, UMR 5571, Université Joseph Fourier CNRS, BP 53, 38041 Grenoble cedex 9, France
Romain Petrov: Laboratoire Hippolyte Fizeau, UMR 6525, Université de Nice Sophia-Antipolis CNRS, Observatoire de la Côte d’Azur, Parc Valrose, 06108 Nice cedex 2, France
Sylvie Robbe-Dubois: Laboratoire Hippolyte Fizeau, UMR 6525, Université de Nice Sophia-Antipolis CNRS, Observatoire de la Côte d’Azur, Parc Valrose, 06108 Nice cedex 2, France
Peter Schilke: I. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Cologne, Germany
Leonardo Testi: INAF-Osservatorio Astrofisico di Arcetri, Largo Fermi 5, 50125 Firenze, Italy

Nature, 2010, vol. 466, issue 7304, 339-342

Abstract: High-mass stars on disk Crucial aspects about the life cycle of high-mass stars remain unclear, in particular the early evolutionary phases. For instance, it is still debated whether high-mass stars form in the same way as low- and intermediate-mass stars, through disk accretion, and if so, whether the structure of these disks would differ from their low-mass counterparts. New observations from the Very Large Telescope Interferometer at the European Southern Observatory now reveal a hot compact disk around a massive young stellar object, the protostar IRAS 13481-6124. The image shows an elongated structure about 13 × 19 astronomical units in size, consistent with a disk seen at an inclination angle of ∼45°, the properties of which are qualitatively and quantitatively similar to the disks observed during the formation of low-mass stars.

Date: 2010
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DOI: 10.1038/nature09174

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