[mesa-users] Help with MESA: Definition of Core masses

[Hannah Brinkman]

Dear Josiah,
thank you for your response and pointing me to the right documentation.
This is a lot clearer now.
With kind regards,
Hannah

2016-09-22 17:10 GMT+02:00 Josiah Schwab <jwschwab at berkeley.edu>:

> Hi Hannah,
>
> > I'd like to know what the program uses as a definition for the
> > core-masses.
>
> By default, the core boundaries are determined by the point at which the
> "previous" isotope decreases below some abundance threshold and the
> where the "new" isotope is above some abundance threshold.
>
> For example, the boundary of the helium core is defined to be the point
> (moving inwards) where the h1 mass fraction falls below 0.01
> (he_core_boundary_h1_fraction) and the he4 mass fraction is greater than
> 0.1 (min_boundary_fraction).  Then the he_core_mass is the mass interior
> to this boundary location, etc.
>
> You can control the details of this definition.  See the documentation:
>
> http://mesa.sourceforge.net/controls_defaults.html#
> definition_of_core_boundaries
>
> Best,
> Josiah
>
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