EPJ Web of Conferences
Volume 101, 2015The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting
|Number of page(s)||4|
|Section||Session 5 - Stellar activity and rotation|
|Published online||23 September 2015|
Nonadiabatic analysis of rosette modes of oscillations in rotating stars and their contribution to angular momentum transport
1 Department of Astronomy, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
2 Astronomical Institute, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan
a e-mail: firstname.lastname@example.org
Published online: 23 September 2015
Rosette modes compose a peculiar group of oscillation modes in rotating stars. Although they have been investigated in some theoretical works, it has not been clear yet whether these modes are excited in real stars or not. In order to study this problem, a stability analysis of the modes is performed. It turns out that some rosette modes are unstable due to the kappa mechanism in a model of slowly pulsating B stars. It is also examined how unstable rosette modes can transport angular momentum in stars.
© Owned by the authors, published by EDP Sciences, 2015
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