Thermodynamics over the Web

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Currently, allowed ranges are as follows:

Temperature	3.0 < lg T < 7.5
Density function	-2.0 < lg Q < 1.0
Hydrogen abundance	0.2 < X < 0.8
Heavy elements abundance	0.010 < Z < 0.025

Q is rho/(T/10^6)**3, i.e. lg Q = lg rho + 18.0 - 3.0 * lg T

Proceed to entering input values

References

• MHD
  1. Hummer, D.G., Mihalas, D., 1988. Ap.J. 331, 794-814.
  2. Mihalas, D., Dappen W. and Hummer, D.G., 1988. Ap.J., 331, 815-825.
  3. Dappen, W., Mihalas, D., Hummer, D.G. and Mihalas, B.W., 1988. Ap.J., 332, 261-270.
• OPAL
  1. Rogers, F.J., 1994. in IAU Colloq. 147, The Equation of State in Astrophysics, ed. G.Chabrier & E.L.Schatzman (Cambridge: Cambridge Univ. Press), 16
  2. Rogers, F.J., Swenson, F.J., Iglesias, C.A., 1996. Ap.J., 456, 902-908.