[Mesa-users] About nse.net

[Francis Timmes]

hi wenyu,

5e9 k is probably too hot to be mapping in a change in the reaction network.
perhaps try changing the network when the central temperature is a bit cooler, say 2e9 k.

fxt





> On Dec 12, 2021, at 9:30 PM, 辛文宇 via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> Dear everyone,
> 
> 
> 
> I use the example of "25M_pre_ms_to_core_collapse" in 12778 version to evolve stars 
> 
> from ZAMS to Fe core collapse. When the central T reaches 5E+9 (log Tc=9.7), I want 
> 
> change the nuclear network into "nse.net". The network in the former stages I used is
> 
> mesa_128.net. The former evolution is smoothly. However, when the network changes
> 
> to nse.net. The following problem is shown:
> 
> ======================================================================
> 
>  netint failed: abs(h).lt.stpmin   3.4753213900951310E-029   9.9999999999999997E-029
>  netint failed: abs(h).lt.stpmin   2.8806830949925469E-029   9.9999999999999997E-029
>  retry    1012
>                            1st model retry log10(dt/yr)   -1.9254117971048657D+01
>  netint failed: abs(h).lt.stpmin   3.4753213900951310E-029   9.9999999999999997E-029
>  netint failed: abs(h).lt.stpmin   2.8806830949925469E-029   9.9999999999999997E-029
>  retry    1012
>                                                      dt    8.7894878303463986D-13
>                                      min_timestep_limit    9.9999999999999998D-13
> 
>  stopping because of problems dt < min_timestep_limit
> 
>  terminated evolution: cannot find acceptable model
> 
>  termination code: min_timestep_limit
> 
> ======================================================================
> 
> The inlist file the detail output information file are attached.
> 
> I am not sure how to modify the file and makes the evolution 
> 
> successfully.
> 
> 
> 
> Thanks,
> 
> Wenyu
> 
> 
> 
> <inlist_to_lgT_9.7><inlist_to_lgT_9.9><slurm-364461.out>_______________________________________________
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