[Mesa-users] About nse.net

辛文宇 wyxin at nao.cas.cn
Mon Dec 13 04:30:02 UTC 2021


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


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