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TW Hydrae: multi-wavelength interferometry of a transition disk

Published online by Cambridge University Press:  06 January 2014

J. Menu*
Affiliation:
Instituut voor Sterrenkunde, KU Leuven, Belgium Max Planck Institut für Astronomie, Heidelberg, Germany
R. van Boekel
Affiliation:
Max Planck Institut für Astronomie, Heidelberg, Germany
T. Henning
Affiliation:
Max Planck Institut für Astronomie, Heidelberg, Germany
M. Benisty
Affiliation:
Institut de Planétologie et d'Astrophysique de Grenoble, France
C. J. Chandler
Affiliation:
National Radio Astronomy Observatory, Socorro, USA
H. Linz
Affiliation:
Max Planck Institut für Astronomie, Heidelberg, Germany
C. Waelkens
Affiliation:
Instituut voor Sterrenkunde, KU Leuven, Belgium
S. M. Andrews
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
N. Calvet
Affiliation:
Department of Astronomy, University of Michigan, Ann Arbor, USA
J. M. Carpenter
Affiliation:
Astronomy Department, California Institute of Technology, Pasadena, USA
S. A. Corder
Affiliation:
Joint ALMA Observatory, Santiago, Chile
A. T. Deller
Affiliation:
ASTRON, The Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
C. P. Dullemond
Affiliation:
Institute for Theoretical Astrophysics, University of Heidelberg, Germany
J. S. Greaves
Affiliation:
School of Physics and Astronomy, University of St. Andrews, UK
R. J. Harris
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
A. Isella
Affiliation:
Astronomy Department, California Institute of Technology, Pasadena, USA
W. Kwon
Affiliation:
Department of Astronomy, University of Illinois, Urbana, USA
J. Lazio
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA
L. G. Mundy
Affiliation:
Department of Astronomy, University of Maryland, College Park, USA
L. M. Perez
Affiliation:
Astronomy Department, California Institute of Technology, Pasadena, USA
L. Ricci
Affiliation:
Astronomy Department, California Institute of Technology, Pasadena, USA
A. I. Sargent
Affiliation:
Astronomy Department, California Institute of Technology, Pasadena, USA
S. Storm
Affiliation:
Department of Astronomy, University of Maryland, College Park, USA
L. Testi
Affiliation:
European Southern Observatory, Garching, Germany INAF-Osservatorio Astrofisico di Arcetri, Firenze, Italy
D. J. Wilner
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
*
PhD fellow of the Research Foundation – Flanders; email: [email protected]
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Abstract

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For over a decade, the structure of the inner “hole” in the transition disk around TW Hydrae has been a subject of debate. To probe the innermost regions of the protoplanetary disk, observations at the highest possible spatial resolution are required. We present new interferometric data of TW Hya from near-infrared to millimeter wavelengths. We confront existing models of the disk structure with the complete data set and develop a new, detailed radiative-transfer model. This model is characterized by: 1) a spatial separation of the largest grains from the small disk grains; and 2) a smooth inner rim structure, rather than a sharp disk edge.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013 

References

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