Nonadiabatic analysis of strange-modes in hot massive stars with time-dependent convection
1. Laboratoire d’ètudes spatiales et d’instrumentation en astrophysique (LESIA), CNRS UMR8109, Universitè Pierre et Marie Curie, Universitè Denis Diderot, Observatoire de Paris, 5, Place Jules Janssen 92195 Meudon, France
2. University of Tokyo, School of Science, Department of Astronomy, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
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Published online: 23 September 2015
We carry out nonadiabatic analysis of strange-modes in hot massive stars with time-dependent convection (TDC). We find that the instability of the modes excited at the Fe bump is weaker with TDC than with frozen-in convection (FC). But the instability still remains with TDC, and could be a possible candidate for the trigger of luminous blue variable (LBV) phenomena.
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