¹ Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, N6A 3K7, Canada
² Department of Physics, Central Michigan University, Mt. Pleasant, MI 48859, US
³ US Naval Observatory, Flagstaff Station, 10391 W. Naval Observatory Rd., Flagstaff, AZ, 86001-8521, USA

We have computed theoretical models of circumstellar disks for the classical Be stars κ Dra, β Psc, and υ Cyg. Models were constructed using a non-LTE radiative transfer code developed by Sigut & Jones (2007) 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 Hα emitting regions and by contemporaneous Hα line profiles. Detailed comparisons of our predictions with Hα interferometry and spectroscopy place very tight constraints on the density distributions for these circumstellar disks.

Accepted by ApJ
Preprints on the web at http://arxiv.org/abs/0807.1515