[Mesa-users] Tip of the Red Giant Branch

[Adrian Ayala]

Dear Mitchell,


On 01/10/2021 11:04, Francis Timmes via Mesa-users wrote:
> hi mitchell,
>
>> Is this typical for MESA at the TRGB ...
>
> mesa is a tool, not a model. i note that the inlist for your model
> relies entirely on the default mass and temporal resolution criteria.
> these default settings may be good enough for a nightly test suite case,
> but they are probably not good enough for publication quality science.
> best practices includes varying the default settings:
>
> https://docs.mesastar.org/en/latest/using_mesa/best_practices.html
>
> others can chime in on color filters ...
>
> fxt
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>> On Sep 30, 2021, at 5:32 PM, Mitchell Dennis <mtde226 at hawaii.edu> wrote:
>>
>> Dear MESA Mailing List,
>>   
>> I am doing work on stars at the tip of the red giant branch, and although several research papers cite an iBand Magnitude of -4.1 with a theoretical iBand Magnitude of ~-4, many of my models only reach an iBand Magnitude of -3.8. Is this typical for MESA at the TRGB, or am I missing a correction that I need to apply to the MESA absolute magnitude iBand output?
>>   
>> My current stopping condition is the power_he_upper_burn_limit which is set to 1.0d6. Typical mass, metallicity and helium abundance are 1.0, 0.0006 and 0.25.
>>   
>> I’ve attached a copy of my inlist which is based on the test_suite he_core_flash, and my run_star_extras file is unmodified.
>>   
>> Do you have any suggestions for determining whether a model will flash or not?
>>   
>> Thanks for the help
>>   
>> Best Regards,
>> Mitchell T Dennis
>> Graduate Student
>> UH Manoa – Institute for Astronomy
>> <inlist_he_core_flash>_______________________________________________
>> mesa-users at lists.mesastar.org
>> https://lists.mesastar.org/mailman/listinfo/mesa-users
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