Study of the inner disk of the Herbig star MWC480

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• 作者：N. Jamialahmadi (1)
  B. Lopez (1)
  P. Berio (1)
  S. Flament (1)
  A. Spang (1)
  
  1. Laboratoire D.-L. Lagrange ; UMR 7293 UNS-CNRS-OCA ; Boulevard de l鈥橭bservatoire ; CS 34229 ; 06304 ; Nice Cedex 4 ; France
  
• 关键词：Circumstellar dust ; Planetary system ; Star ; MWC480 ; Techniques ; interferometric
• 刊名：Astrophysics and Space Science
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：355
• 期：1
• 页码：105-116
• 全文大小：882 KB
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  
• 出版者：Springer Netherlands
• ISSN：1572-946X

文摘

The inner structure and properties (temperature, mass) of the circumstellar disk of Herbig star MWC480 are studied by stellar interferometry method used in the infrared and are interpreted using semi-analytical models. From these models, the SED (Spectral Energy Distribution) was fitted and multi-wavelength intensity map of the source were calculated. The intensity map provides the input for modeling the Keck Interferometer (KI) data in the near-infrared (near-IR) and the data of Very Large Telescope Interferometer (VLTI) with the mid-infrared instrument MIDI. We conclude that with our limited set of data, we can fit the SED, the Keck visibilities and the MIDI visibilities using a two-components disk model. Furthermore, we suspect that MWC480 has a transitional dusty disk. However, we need more MIDI observations with different baseline orientations to confirm our modeling.