A Parameter Study of Classical Be Star Disk Models Constrained by Optical Interferometry

Details A Parameter Study of Classical Be Star Disk Models Constrained by Optical Interferometry A Parameter Study of Classical Be Star Disk Models Constrained by Optical Interferometry

2008-07-09

arxiv.org/abs/0807.1515v1

Astronomy and Astrophysics

Astrophysics

10 figures,28 pages, accepted by ApJ

Scientific paper

10.1086/591726

We have computed theoretical models of circumstellar disks for the classical Be stars $\kappa$ Dra, $\beta$ Psc, and $\upsilon$ Cyg. Models were constructed using a non-LTE radiative transfer code developed by \citet{sig07} which incorporates a number of improvements over previous treatments of the disk thermal structure, including a realistic chemical composition. Our models are constrained by direct comparison with long baseline optical interferometric observations of the H$\alpha$ emitting regions and by contemporaneous H$\alpha$ line profiles. Detailed comparisons of our predictions with H$\alpha$ interferometry and spectroscopy place very tight constraints on the density distributions for these circumstellar disks.

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