A parameter study of classical Be star disk models constrained by optical interferometry

C. E. Jones, C. Tycner, T. A.A. Sigut, J. A. Benson, D. J. Hutter

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)598-607
Number of pages10
JournalAstrophysical Journal
Volume687
Issue number1
DOIs
StatePublished - Nov 1 2008

Keywords

  • Circumstellar matter
  • Stars: emission-line, Be
  • Stars: individual (κ Dra, β Psc, υ Cyg)
  • Techniques: interferometric

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