[mesa-users] Fast Mass Loss

Bill Paxton paxton at kitp.ucsb.edu
Mon Apr 17 14:28:37 EDT 2017

Hi Kenny,

The extreme mass loss rates and "collision" stripping leave me wondering what the photosphere might be in such a situation.  I wouldn't really expect anything to make much sense during such a phase; at best things might start to make sense when you come out the other of this, but all bets off for details during the stripping phase.


On Apr 17, 2017, at 10:02 AM, Kenny Van wrote:

> Hi,
> I'm encountering some odd numerical issues with the model that I am trying to run. Essentially what I have done is evolved a solar type star to 2 solar radii, then proceed to strip off the envelope of the star at -1.0 solar masses per year. I realize that the mass loss being enforced here is incredibly high, but this is an attempt to try and simulate collisional stripping between two stars. In the simulation if the timestep is initially low enough the simulation will continue to run but for reasons unknown to me MESA greatly increases effective temperature and luminosity at the very start of the run. Is this a result of the hydro solver trying to force the simulation to work?
> Best
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