منابع مشابه
The OPAL Equation of State and Low Metallicity Isochrones
The Yale stellar evolution code has been modified to use the OPAL equation of state tables (Rogers 1994). Stellar models and isochrones were constructed for low metallicity systems (−2.8 ≤ [Fe/H] ≤ −0.6). Above M ∼ 0.7M⊙ , the isochrones are very similar to those which are constructed using an equation of state which includes the analytical Debye-Hückel correction at high temperatures. The abso...
متن کاملImplementation of new OPAL tables in Eggleton’s stellar evolution code
Based on the work of OPAL (Iglesias & Rogers 1996) and Alexander & Ferguson (1994), we construct a series of opacity tables for various metallicities Z = 0, 0.000 01, 0.000 03, 0.000 1, 0.000 3, 0.001, 0.004, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.08 and 0.1. These tables can be easily used in Eggleton’s stellar evolution code in place of the old tables without changing the code. The OPAL tables...
متن کاملEquation of State for Mercury
An analytical equation of state by Song and Mason is developed to calculate the PVT properties ofmercury. The equation of state is based on the statistical-mechanical perturbation theory of hard convexbodies and can be written as a fifth-order polynomial in the density. There exists three temperaturedependentparameters in the equation of state; the second virial coefficient, an effective molecu...
متن کاملModified Equation of State Applied to Refrigerants
An analytical equation of state has been previously modified by Papari et al. for representing the volumetric properties of molecular fluids. However the performance of that EOS has not been yet well investigated for refrigerant fluids. This study extended that equation to 19 liquid refrigerants to predict their densities at isothermal and saturated states. Two temperature-independent parameter...
متن کاملAn equation of state for argon
An analytical equation of state was applied to calculate the thermodynamic properties for argon.The equation of state is that of Song and Mason. It is based on a statistical-mechanical perturbationtheory of the hard convex bodies and can be written as fifth-order polynomial in the density. Thereexist three temperature-dependent parameters: the second virial coefficient, an effective molecularvo...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 1995
ISSN: 1539-2996
DOI: 10.1017/s1539299600011412