Astro EOS

Mesh of SAHA-S

The SAHA-S tables are rectangular and have mesh evenly spaced in log10(T) and log10(Qs):

Value	Range	Step	Knots
lgT	3.20 ... 7.55	0.025	175
lgQ_s	-4.50 ... 0.45	0.05	100
X	0.1 ... 0.9	0.1	9
Z	0.0 ... 0.020	0.005	5 [*]

[**] GN93 mixture is computed only for Z=0, 0.01 and 0.02.

The following figure presents domains of definition for SAHA-S and OPAL equations of state. Red and magenta curves show points (rho, T) from models of stars with 1 and 2 solar masses.