[mesa-users] Binary capabilities on MESA

Bill Paxton paxton at kitp.ucsb.edu
Tue Oct 9 11:44:16 EDT 2012

Hi Roni,

Good catch -- that's a bug.   The code is correctly updating the "companion_mass" variable,
but it isn't actually causing the model for the companion to gain mass accordingly:
we calculate what the mass change should be, but we don't make it happen.

I'll add this to the list -- hopefully there will be a fix soon.


On Oct 9, 2012, at 6:49 AM, Roni Waldman wrote:

> Hi,
> Following up on a recent discussion here, I started looking at binary evolution with MESA.
> I ran the binary_rlo_implicit example.
> I got results looking the same as documented on the mesa forum, however something looks peculiar:
> Whereas the companion mass, as plotted from the history.data of the primary is growing in mass, as it should, in the log2 and out file it loses mass, according to the mass loss laws set in the inlist2.
> Can anyone explain what is going on?
> Cheers,
> Roni
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