[mesa-users] ZAMS rotation models problem

[trobolo dinni]

Hi Bill,

I am using the last version of MESA (the 4770 one), the most peculiar case
is the omega/omega_crit=0.5, where the star stalls for the most numbers of
models.
The inlist file for this case is attached to this mail, in the other cases
I just changed the initial omega/omega_crit.

Let me know if the inlist is set up in the wrong way (MESA inlists have a
lot of options and I am still a beginner! Anyway I just took the default
1M_pre_ms_to_wd one and added rotation on ZAMS), maybe that is the simple
problem.
What other files do you need to reproduce the run?

Thank you very much,
                                      Roberto




2013/1/11 Bill Paxton <paxton at kitp.ucsb.edu>

> Hi Roberto,
>
> Interesting!   Please send inlists etc so that I can reproduce exactly
> what you are doing.
>
> Thanks,
> Bill
>
>
> On Jan 10, 2013, at 3:20 PM, trobolo dinni wrote:
>
> > Dear MESA users,
> >
> > I am working on a series of models of a standard 1Msun star with
> rotation evolved fom preMS to the He-flash.
> > I am adding rotation on the ZAMs and I have to span a range of rotations
> from omega/omega_crit=0.1 to omega/omega_crit=0.9.
> >
> > When I use angular frequencies approximately in the range  0.5 <
> omega/omega_crit < 0.6 the code get stuck right after rotation is inserted
> for like 20000 models, with the star bouncing on a small line in the HR
> diagram. During this time I can see from the data that something is
> happening to the model, probably the star is trying to stabilize.
> > After this phase the evolution continues and reaches the end of the
> simulation.
> >
> > I would like to ask if this is a known MESA behavior and if in this case
> the physical results are still solid.
> >
> > Thanks,
> >                   Roberto
> >
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