[mesa-users] Learning stellar evolution and asteroseismology using MESA

[Aaron Dotter]

Hi Cyrus,

1) Find a stopping condition or a selecting condition for RR Lyrae. I'll
> have to jump in books and papers to find (and as I'm one a tight schedule,
> any help would be welcomed)
>

RR Lyrae stars have, generally speaking, low mass (M_initial < 0.9 Msun),
low metallicity ([Fe/H] < -1), and old ages ( > 10 Gyr).

They are core He-burning stars so you can stop with something like

    xa_central_lower_limit_species(1) = 'he4'
    xa_central_lower_limit(1) = 1d-5

You might also find it useful to identify when the star enters and exits
the instability strip.  See this paper
<http://adsabs.harvard.edu/abs/2006AJ....131.1750S> for some suggestions on
the identification of the RRL instability strip in terms of effective
temperature.

Aaron
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