Spectrally and spatially resolved Hα emission from Be stars: their disks rotate Keplerian Proceedings Paper (Web of Science)


  • AbstractWe test whether Be star disks rotate in a Keplerian or an Angular Momentum Conserving fashion. This is done by employing sub-milli arcsecond spectroastrometry around Hα. We spatially resolve the disks, and are the first to do so at such a high spectral resolution. We fit the emission line profiles with parametric models. The Keplerian models reproduce the spectro-astrometry, whereas the AMC models do not, thereby supporting the viscous disk model for Be stars.


publication date

  • 2010

number of pages

  • 1

start page

  • 418

end page

  • 419


  • 6


  • S272