[mesa-users] High Rotation Stellar Model Issues

[Ethan Payne]

On 17 October 2016 at 22:20, Pablo Marchant <pamarca at gmail.com> wrote:

> Hi Ethan. First, I'd strongly recommend you use the Ledoux criterion with
> overshooting and semiconvection turned on.
>
> If your star is evolving to critical rotation, it is likely that the
> source of your problems is the wind mass loss enhancement due to rotation.
> This is because by default mass loss rates go to infinity at critical
> rotation. To correct for this, you can use the implicit wind scheme, which
> iterates a step while adjusting the mass loss rate until the model remains
> below a threshold in omega/omega_crit. To turn this on, you can set
>
> max_mdot_redo_cnt = 50
>
> Look for this option in
>
> http://mesa.sourceforge.net/controls_defaults.html#mass_gain_or_loss
>
> so that you understand what is being done.
>
Thank you, I'll implement both. And that would make sense as to what is
occurring, thank you.

> Also, any reason for you to turn on the option for the hydrodynamics term?
> This is what the v_flag does, and of course, if you want to resolve any
> stellar dynamics you need timesteps well below a century.
>
Sorry, this was an outdated inlist, however, the problem was still present
there. Sorry about that. However, thank you so much for your help!

Regards,

Ethan Payne
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