[Mesa-users] A question about 1M_pre_ms_to_wd

[Evan Bauer]

Hi Liguo,

I believe there is no TP-AGB phase in what you’re running on 15140 because of the combination of wind settings and stopping condition in inlist_to_end_agb. These settings are engineered to quickly remove the envelope and move on the WD phase once the model evolves onto the AGB. This skips over most of the rather slow calculation of the TP-AGB to save some time. If you experiment with changing the settings for the stopping condition and winds in that inlist, I expect that you could see the model evolve through the TP-AGB phase.

Cheers,
Evan

P.S. Please keep replies on the mesa-users list.

> On Dec 17, 2021, at 9:20 AM, Liguo <liguo070923 at 163.com> wrote:
> 
> Dear professor Evan Bauer
>   Thank you for your reply and your suggestion!
>   I have a question.Why can't I find TP-AGB phase in HR diagram in mesa-r15140?
>   Look forward to your reply!
>   sincerely!
>   Liguo
> 
> 
> 
> 
> 
> 在 2021-12-17 05:57:17，"Evan Bauer" <evan.bauer.astro at gmail.com> 写道：
> 
> Hi Liguo,
> 
> The plots you are looking at in the docs folder are from a very old version of MESA, so it’s not necessarily surprising that current MESA does not produce the exact same evolutionary track.
> 
> Much more recent documentation can be found at:
> https://docs.mesastar.org/en/latest/test_suite/1M_pre_ms_to_wd.html#m-pre-ms-to-wd <https://docs.mesastar.org/en/latest/test_suite/1M_pre_ms_to_wd.html#m-pre-ms-to-wd>
> 
> If you’d like to see the TP-AGB phase in your current model, I would consider experimenting with changing the stopping condition found in inlist_to_end_agb.
> 
> Cheers,
> Evan
> 
>> On Dec 16, 2021, at 3:59 AM, Liguo via Mesa-users <mesa-users at lists.mesastar.org <mailto:mesa-users at lists.mesastar.org>> wrote:
>> 
>> Dear Aaron and everone
>>   I am using mesa-r15140,and I ran 1M_pre_ms_to_wd without any change.I drew it's HR diagram,but it is different from the HR_Diagram in docs/plots_out.The HR diagram drew by I is lack of TP_AGB phase.I attack two different HR diagrams.
>>   What should I do to get right result?
>>  Any suggestions or help would be very appreciated!  
>>  Look forward to your reply!
>> 
>> sincerely!
>> Liguo
>> 
>> 
>>  
>> <HR.png><HR_Diagram.pdf>_______________________________________________
>> mesa-users at lists.mesastar.org <mailto:mesa-users at lists.mesastar.org>
>> https://lists.mesastar.org/mailman/listinfo/mesa-users
>> 
> 
> 
> 
>  

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