[Mesa-users] Brunt-Vaisala frequency is noisy

[RICHARD H D TOWNSEND]

Hi Pedro --

There are MESA controls that allow you to smooth the B-V profile. Try playing around with

num_cells_for_smooth_brunt_B
threshold_for_smooth_brunt_B

cheers,

Rich

> On Dec 5, 2018, at 11:22 AM, Pedro Nuno David Gomes via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> Dear MESA users,
> 
> I'm trying to evolve a 1.5 solar mass star to a point in the red giant branch. For this model, among other quantities, I need the Brunt-Vaisala (which from here on I shall call BV) frequency in the main sequence, subgiant and red giant phases.
> 
> The BV determined by MESA is shown to be extremely noisy, and I don't understand why. I'm sending attached the BV^2 plots for these 3 phases, as well as the inlist I am using. I am using release 10398.
> 
> I don't understand why this is happening, so I would be greatly appreciated if someone could help me solving this problem.
> 
> Thank you very much for your attention,
> 
> Pedro<BV2_MS.png><BV2_redgiant.png><BV2_subgiant.png><inlist_project_1.5M>_______________________________________________
> mesa-users at lists.mesastar.org
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>