[Mesa-users] Timestep limits by negative abundances

[Evan Bauer]

Hi Robert,

Could you attach your terminal output so we could see some more information to help diagnose the issue? It might also help to send your starting model and any other files that we might need to try to reproduce the run and suggest changes to help with convergence.

Cheers,
Evan

> On Mar 11, 2024, at 9:32 AM, Robert Willer <rwiller at mpe.mpg.de> wrote:
> 
> Hello MESA-Community!
> 
> My Name is Robert, I am working on models of classical novae with MESA, including overshooting. I am encountering the problem that the timestep of my models is limited by negative mass fractions being produced (particularly c12, after the initial thermonuclear runaway, as the nova envelope is expanding). Do you have any suggestions where I should look or what I could try to mitigate this? I have attached the inlist I am using, its based on the wd_nova_burst test case and I apologize for it being a bit messy, its a work in progress.
> 
> Many thanks, Robert
> 
> 
> 
> <inlist_wd_nova_burst.txt>_______________________________________________
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