testComposition: Check the existence of a record in the database
Description
Check that the given chemical composition (Z, Y, [alpha/Fe]) and the
mixing-length value exist in the stellar database.
Usage
testComposition(Z, Y, ML, AFE)
Value
The function returns TRUE if the combination of the inputs
exists in the database.
Arguments
Z
the initial metallicity of the model.
Y
the initial helium abundance of the model.
ML
the mixing-length of the model.
AFE
the alpha-enhanchment of the model. Allowed values are AFE =
0 ([alpha/Fe] = 0.0) or AFE = 1 ([alpha/Fe] = 0.3).
References
M. Dell'Omodarme, G. Valle, S. Degl'Innocenti, and P.G. Prada Moroni
(2012). The Pisa Stellar Evolution Data Base for low-mass
stars. Astronomy and Astrophysics, 540, A26.