[Mesa-users] 2.0 M_sun star did not reach the AGB phase

[Ebrahim Hassani]

Dear mesa-users

I used 1M_pre_ms_to_wd star in mesa-r15140/star/test_suite to consider dark
matter effects in stars. I could edit and run the code successfully. But
when I changed the mass of the star from 1.0 M_sun to 2.0 M_sun the code
again worked without any problem. But for the 2.0 M_sun star, the star did
not finish the run. It took about 10^5 steps until now and it did not reach
the AGB phase or later phases. In addition, until 10^5 step, the mass of
the star did not reduce due to e.g. stellar winds, etc.

The code of the 2.0 M_sun star is available at (see the attached files too):
https://drive.google.com/file/d/1FpFxApMOeZ6tK2Pzr3XbkAk1ZKqhsQhm/view?usp=sharing

I used this code (in jupyter notebook) to plot the H-R diagram (see the
attached files too):
https://drive.google.com/file/d/1iDOTf6L1sJXUkeO3cupHQOas-RIaRnwc/view?usp=sharing

It is worth mentioning that I mostly edited the run_star_extras.f90 file in
the src folder to consider dark matter effects. I also uncommented
"max_model_number = ..." command in inlist files. I also changed the amount
of "log_L_lower_limit" values in inlist files.

May I ask what might be the possible problem of the code that it did not
reach to AGB phases? And how can I solve this problem?

I would greatly appreciate any of your comments.


Best regards,
Ebrahim Hassani
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