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Proceedings Paper

HD 139614: the interferometric case for a group-Ib pre-transitional young disk
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Paper Abstract

The Herbig Ae star HD 139614 is a group-Ib object, which featureless SED indicates disk flaring and a possible pre-transitional evolutionary stage. We present mid- and near-IR interferometric results collected with MIDI, AMBER and PIONIER with the aim of constraining the spatial structure of the 0.1-10 AU disk region and assess its possible multi-component structure. A two-component disk model composed of an optically thin 2-AU wide inner disk and an outer temperature-gradient disk starting at 5.6 AU reproduces well the observations. This is an additional argument to the idea that group-I HAeBe inner disks could be already in the disk-clearing transient stage. HD 139614 will become a prime target for mid-IR interferometric imaging with the second-generation instrument MATISSE of the VLTI.

Paper Details

Date Published: 24 July 2014
PDF: 11 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462T (24 July 2014); doi: 10.1117/12.2055353
Show Author Affiliations
Lucas Labadie, Univ. zu Köln (Germany)
Alexis Matter, Institut de Planétologie et d’Astrophysique de Grenoble, CNRS, Univ. Joseph Fourier (France)
Alexander Kreplin, Max-Planck-Institut für Radioastronomie (Germany)
Bruno Lopez, Lab. Joseph-Louis Lagrange, CNRS, Observatoire de la Côte d'Azur (France)
Sebastian Wolf, Christian-Albrechts-Univ. zu Kiel (Germany)
Gerd Weigelt, Max-Planck-Institut für Radioastronomie (Germany)
Steve Ertel, European Southern Observatory (Germany)
Jean-Philippe Berger, European Southern Observatory (Germany)
Jorg-Uwe Pott, Max-Planck-Institut für Astronomie (Germany)
William C. Danchi, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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