[mesa-users] Weird jumps in radius for rotating 8.1Msun model

Hideyuki Saio saio at astr.tohoku.ac.jp
Thu Jun 7 08:19:01 EDT 2012


I have encountered similar jumps in radius several times at non-rotating massive star evolutions. They are mostly very small, and seem to be caused by  infusions of H-rich matter into the convective core. I attach a plot for a relatively large jump  (Yc means helium abundance in the core).  FYI. 


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On 2012/06/07, at 10:58, Richard Townsend wrote:

> Hi folks --
> When I run an 8.1Msun model from ZAMS to TAMS with the inclusion of rotation (see attached inlist), I find strange jumps in the stellar radius from one model to the next (see attached radius vs time plot). Similar jumps show up for masses in the wider interval 7Msun - 10Msun.
> What am I doing wrong here?
> cheers,
> Rich
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