Abstract
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.
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Notes
The software package is available at http://home.strw.leidenuniv.nl/~jaffe/ews/index.html the software manual is available at http://home.strw.leidenuniv.nl/~jaffe/ews/MIA+EWS-Manual/index.html.
A grain illuminated directly by the central star assuming no radiative exchange with other grains.
The elementary surface area of the disk is defined by our pixel size in the images of our model.
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Acknowledgements
The MIDI observation of this work has been obtained by Di Folco et al. in 2007. Authors want to thank A. Matter and A. Meilland for useful exchanges.
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Jamialahmadi, N., Lopez, B., Berio, P. et al. Study of the inner disk of the Herbig star MWC480. Astrophys Space Sci 355, 105–116 (2015). https://doi.org/10.1007/s10509-014-2155-9
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DOI: https://doi.org/10.1007/s10509-014-2155-9