Models of Be Star Disks Constrained by Long-baseline Interferometry

Details Models of Be Star Disks Constrained by Long-baseline Interferometry Models of Be Star Disks Constrained by Long-baseline Interferometry

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20912703t&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #127.03; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We demonstrate how theoretical models of the circumstellar disks surrounding Be stars are constrained by interferometric observations that spatially resolve the circumstellar regions. The disk models are constructed using a non-LTE radiative transfer code developed by Sigut & Jones, which incorporates a number of improvements over previous treatments of the thermal structure, including a realistic chemical composition. We show that the disk models of three Be stars, κ Dra, υ Cyg, and β Psc agree with the interferometric observations only for particular ranges of the disk parameters, which results in specific density structure and temperature distribution constraints.
C.T. acknowledges that this work was performed in part under contract with the Jet Propulsion Laboratory (JPL) funded by NASA through the Michelson Fellowship Program. JPL is managed for NASA by the California Institute of Technology. C. E. J. and T. A. A. S. acknowledge financial support from NSERC.

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