[Mesa-users] Reimers

Josiah Schwab jwschwab at ucsc.edu
Tue Oct 24 11:02:40 EDT 2017


Hi Adrian,

> Is the mass loss parameter implemented in MESA the eta appearing in
> the formula
>
> M_dot = 1.34e-5 x eta x (L^3/2)/(MxTeff^2)
>
> or is another parameter, i.e. eta multiplied by some factor?

For the expression MESA uses

  http://mesa.sourceforge.net/controls_defaults.html#Reimers_scaling_factor

where eta = Reimers_scaling_factor.

You can plug R in terms of L & Teff into the MESA expression and confirm
that it reduces to the form you gave.

Josiah



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