[mesa-users] dlnRho_dlnPgas_const_T = 0 problem for 0.5-1.5 solar mass models (multimass)

[Ireland, Lewis]

Hi everyone,

I am using the multimass test suite to create simple 1D models of 0.5-1.5 solar mass stars in 0.1 solar mass increments. I want to collect the data for dlnRho_dlnPgas_const_T from each model, but  dlnRho_dlnPgas_const_T = 0 throughout when I look at the results. When I used example_solar_model to model a 1 solar mass star, I obtained non-zero values for dlnRho_dlnPgas_const_T, and I want the same for the other masses.

Why does dlnRho_dlnPgas_const_T = 0 throughout the models in the multimass test suite? Can I use example_solar_model and vary the mass to obtain the results I want? When I tried changing initial_mass in the example_solar_model inlist, the final mass always ended up at 1 solar mass.

Thank you!

Lewis





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