[mesa-users] Abundances vs Radius

Bill Paxton paxton at kitp.ucsb.edu
Sun May 8 11:07:00 EDT 2016


Hi,

We don't get back exact values for ionization states of individual ions from the equation of state, but we can provide estimates from the mesa/ionization module.

Add these lines to your profile_columns.list

   ! average charge from ionization module
      avg_charge_H
      avg_charge_He
      avg_charge_C
      avg_charge_N
      avg_charge_O
      avg_charge_Ne
      avg_charge_Mg
      avg_charge_Si
      avg_charge_Fe

For an example, I've attached plots of average charge from the 1M_pre_ms_to_wd test case when the model has become a red giant (near tip of RGB).

Good luck,
Bill



















On May 8, 2016, at 6:35 AM, Liliana Novais wrote:

> Hi thanks. I just run MESA and it worked fine, Can I also change for ionized He4 and He3 and H???? and non-ionized?
> Thanks,
> Liliana
> 
> Às 03:27 de 08-05-2016, Robert Farmer escreveu:
>> Hi
>> You can set the option:
>> Abundance_xaxis_name = 'radius'
>> in your pgstar inlist
>> 
>> http://mesa.sourceforge.net/pgstar_defaults.html#Abundance_window
>> 
>> Rob
>> 
>> On Sat, May 7, 2016 at 3:29 PM, Liliana Novais <linovais at gmail.com> wrote:
>> Hello,
>> I am using Mesa and I need to plot the abundances of the ionizated H and
>> He as a function of the position, radius, is that possible to do? I can
>> only make it has a function of mass.
>> Thanks,
>> Liliana
>> 
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