[mesa-users] Removal of Outer Envelope

Bill Paxton paxton at kitp.ucsb.edu
Wed Apr 3 00:41:09 EDT 2013


Hi Sarafina,

You might take a look at the make_he case in the test_suite.  
It works by removing the envelope on the RGB after a helium core has evolved.
The "engineering" is done using these controls:

      relax_mass = .true. ! gradually change total mass
      new_mass = 0.15

You'll want to set the new mass appropriately for your problem.

Good luck,
Bill




On Apr 2, 2013, at 3:52 PM, Sarafina Nance wrote:

> Hi Mesa Community,
> 
> I am currently running MESA version 4740 and am attempting to view the Brunt Vaisala frequency in the core after hydrogen burning. Is it possible during evolution to strip the outer layers and leave just the core to study this frequency?
> 
> Much thanks!
> 
> Sarafina Nance
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