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| Paper: |
Disks Surrounding Be stars: A Stellar Evolution Perspective |
| Volume: |
464, Circumstellar Dynamics at High Resolution |
| Page: |
117 |
| Authors: |
Granada, A.; Ekström, S.; Georgy, C.; Meynet, G.; Krtička, J.; Owocki, S. P. |
| Abstract: |
There is evidence that at least some stars undergoing the Be phenomenon are
single, almost critically rotating stars surrounded by viscous Keplerian
disks. By combining our new stellar evolutionary tracks for critically
rotating B-type stars with different masses and metallicities, with the
parametrized expressions by Krtička et al. (2011) describing the
properties of a stationary viscous Keplerian disk surrounding a star rotating
at its breakup limit, we are able to explore for the first time how the
properties of such a disk changes along the main sequence evolution of the
star. The results we obtain can be relevant in the understanding of the
formation and existence of Keplerian viscous decretion disks around rapidly
rotating single Be stars. |
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