[Mesa-users] Question about RSP and equilibrium quantities

[Jeremy Sakstein]

Hi Everyone,

I have a quick question about finding the equilibrium values of the stellar
parameters when using RSP Cepheid.

At the moment, I am taking a single pulsation cycle and averaging over the
radius throughout the cycle but this seems to give me two (very closely
separated values).

Below I am plotting radius vs pulsation number. As you can see, I end up
with two very closely separated values for the average. Is this because the
model is changing ever so slightly between pulsations? If so, why does it
converge to two values and not a small scatter about the mean?

[image: image.png]

On a more general point, is it possible to extract the true equilibrium
model from the output rather than taking an average?

Cheers,

Jeremy
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