Equation of state for solar modeling

Select equation of state [help]

Equation of state:

Select output values [help]

If you do not select anything, pressure will still be printed.

Enter input data [help]

Enter here temperature T, density rho and chemical composition, one set of values per line (multiple lines are allowed). Chemical composition can be entered in four possible ways:

1) separate input fields for X and Z are used, each line contains only T and rho; example:

2.17e6 0.18

2) each line contains T, rho, X and Z; separate input fields for X and Z are ignored; example:

2.17e6 0.18 0.74 0.018

3) each line contains T, rho, X, Z(CNO), Z(Ne), Z(FeSi); separate input fields for X and Z are ignored; example:

2.17e6 0.18 0.74 0.010 0.002 0.006

4) each line contains T, rho, X and 19 components for Z (C, N, O, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Ti, Cr, Mn, Fe, Ni); separate input fields for X and Z are ignored (this format is not very useful currently)

It is possible but not recommended to mix different numbers of Z components in one job. Input field size does not limit the amount of data entered; you can type or paste thousands of lines (10,000 lines tested with output size over 5MB).

Hydrogen mass fraction X (0.0 - 0.9):

Heavy elements mass fraction Z (0.0 - 0.02):

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