[mesa-users] ZAMS - abundances

[Robert Farmer]

Hi
They wont be loaded, any isotope that is not in the net isn't used. As an
experiment look in the mod file after using a bigger network and you should
see more isotopes included.

You might want to look through star/private/adjust_xyz.f90 to see what
happens when the net changes with what mesa does to the composition.

Rob

On Wed, Jul 13, 2016 at 10:07 AM, Jakub Ostrowski <
ostrowski at astro.uni.wroc.pl> wrote:

> Hi,
>
> I’d like to understand how abundances are treated when a ZAMS file is
> loaded. Let me carefully explain what I mean.
>
> Let’s assume I want to create a new ZAMS and I’m not happy with the
> default choice of Z fractions. Modification of inlist_create_zams allows me
> to change metal fractions (by the way - it’s 2016, why GS98 is still
> default?) so the calculations could be more suitable for real projects. As
> a result, we could obtain nice PMS models with uniform composition and the
> metal mixture of choice, let’s say AGSS09. It’s awesome at this point, but
> when ZAMS is saved we are left with a file that contains abundances for
> only 8 species from the basic net. And here we got a problem: we load our
> shiny new ZAMS into our model and we got abundances we wanted for 8
> species. What about the rest of the metals? I’m sure they’re not from
> AGSS09. How are they loaded? Where can I found the suitable piece of code
> (if I was able to find it I wouldn’t write this mail ;-) )?
>
> Thank you for any guidance and cheers,
> Jakub
>
>
>
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