New insights on Be shell stars from modelling their Hα emission profiles

J. Silaj, C. E. Jones, T. A.A. Sigut, C. Tycner

Research output: Contribution to journalArticlepeer-review


Be shell stars are believed to be ordinary Be stars seen edge-on, which makes them particularly desirable objects for study since the uncertainty in the inclination of the rotation axis is largely eliminated. We have recently modelled high resolution Hα spectroscopic observations for eight Be shell stars, using the non-local thermodynamical equilibrium radiative transfer code Bedisk (Sigut & Jones 2007) and the new spectral synthesis package Beray (Sigut 2011). Generally, we confirm that these systems are oriented at high inclination angles, although we find that they are not necessarily as close to edge-on as initially expected.

Original languageEnglish
Pages (from-to)457-458
Number of pages2
JournalProceedings of the International Astronomical Union
StatePublished - 2014


  • Be
  • circumstellar matter
  • emission-line
  • line: profiles
  • radiative transfer


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