[Mesa-users] Adding a new particle species

[amber lauer]

Hi Jeremy, it's actually pretty easy.

Look in your inlist star_job section and note the name of the network.

The default version of this file is located in
$MESA_DIR/data/net_data/nets/ .

Copy this file to your model folder. Then open it with a text editor.
Unless you are using one of the hard coded nets (approx21*) you will see
the format is pretty easy to understand, there will be either:

add_isos_and_reactions()

or

add_isos()

add_reactions()

(and possibly remove_reactions())

I think the format is pretty self explanatory. If you use
add_isos_and_reactions, you need only list the isos and the code will add
all reactions connecting them. The alternative is to do it by hand using
add_isos and add_reactions separately. But if you get stuck come back to
the list and we can help.

Just a note, whatever your network name, MESA will look in your local model
folder for the file first. I recommend changing the name to something
verbose (and changing the value in the inlist).

Good luck!

=================================
Dr. Amber Lauer
Postdoctoral Researcher
Triangle Universities Nuclear Lab
Duke University
amber.lauer at tunl.duke.edu <amber.lauer at duke.edu>


On Mon, Aug 19, 2019 at 10:48 AM Jeremy Sakstein <sakstein at sas.upenn.edu>
wrote:

> Hi Everyone,
>
> I would like to add a new particle species (with associated reactions) so
> that it contributes to the EOS and the density.
>
> How do I go about doing this? Is there a hook?
>
> Cheers,
>
> Jeremy
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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