[Mesa-users] A Few MESA Questions

[Francis Timmes]

ok, this appears to be the maxilab from 

https://billwolf.space/projects/massive_binaries_2021/

if i'm understanding your task 2 question, i'm unaware of a way to 
separate the core from the envelope when constructing the merger product.

fxt





> On Jul 12, 2022, at 11:10 AM, Moats, Cassie <moats.68 at buckeyemail.osu.edu> wrote:
> 
> I’m using the maxilab materials from the 2021 summer school.
> 
> Cassie
>  
> From: Francis Timmes <fxt44 at mac.com>
> Date: Tuesday, July 12, 2022 at 2:07 PM
> To: Moats, Cassie <moats.68 at buckeyemail.osu.edu>
> Cc: Frank Timmes <fxt44 at mac.com>, mesa-users <mesa-users at lists.mesastar.org>
> Subject: Re: [Mesa-users] A Few MESA Questions
> 
> 
> 
> hi cassie,
> 
> > ... from the MESA summer school ...
> 
> which year and what material?
> 
> fxt
> 
> 
> 
> > On Jul 12, 2022, at 10:57 AM, Moats, Cassie via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> > 
> > Hi MESA users,
> >  
> > I’m studying some binary star evolution and following a 4 step process from the MESA summer school where I first evolve the 2 stars to Roche lobe overflow, then relax the mass of the binary by assigning the outputted mass of the binary pair to a new star with the profile of the larger star in the merger, then I relax the composition by running a script that takes the components of both stars and produces a new profile for the merger product with the step 2 mass, and finally I evolve the merger until helium depletion. I’m using mesa-r15140.
> >  
> > My first question is if when I am rescaling my mass in step 2, is there a way to do the core and the envelope separately? 
> >  
> > My other issue is that I’m having my step 3 return an error and can’t figure out exactly why. It seems like the error message is because it’s expecting evolution of the star, but no time steps are being taken as it’s just relaxing the composition. In step 2 I’m specifying the total mass, but it’s only output to 6 digits. Does this matter and could it be a conflict between steps 2 and 3? I’ve attached the error message I’m getting along with my inlists for this step. 
> >  
> > Cheers,
> > Cassie Moats
> >  
> > <error.png><inlist><inlist_pgstar><inlist_project>_______________________________________________
> > mesa-users at lists.mesastar.org
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>