[Mesa-users] hydro_newton_step failed to accept error during calculation of 2Ms

[Miszuda Amadeusz]

Dear all MESA users,

I’m fairly new in the MESA society, currently on the beginning of my PhD in Astrophysics.
As one of my first tasks, to get familiar with MESA code, was to calculate a 2 solar mass star
evolution from ZAMS.

During calculations, I’ve noticed that star's position on PgPlot’s HR Diagram does not change 
as it would be expected, but moves uniformly towards lower Teffs and luminosities. It stops only 
at the point chosen to end calculations, in my case log_Teff_lower_limit=3.8
Additionally, sometimes in code, i get a warning: hydro_newton_step failed to accept 
Has anybody encountered such a problem?

I run r10108, 10.12-20180127 SDK on 10.13.3 macOS High Sierra.
I attach my inlist, a screenshot of PgPlot and a calculated path.

Thank You for all the advices,
Amadeusz Miszuda


---------------------------------
Miszuda Amadeusz
Astronomical Institute 
Wroclaw University
Kopernika 11 
51-622 Wrocław
Poland

www.astro.uni.wroc.pl
miszuda at astro.uni.wroc.pl
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