Published February 1990 | Version v1
Journal article Metadata-only

The equation of state for stellar envelopes. IV. Thermodynamic quantities and selected ionization fractions for six elemental mixes

Creators

  • 1. Paris Observatoire, Meudon (France)
  • 2. Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)
  • 3. High Altitude Observatory, Boulder, CO (USA)
  • 4. Illinois Univ., Urbana (USA)

Description

The free-energy minimization technique in the form developed in the preceding papers in this series is employed to evaluate thermodynamic quantities and ionization fractions on a fine temperature and density grid for six astrophysical mixtures of 15 elements. The mixtures range from that appropriate to super-metal-rich stars, through solar abundance, to that for extreme Population II objects. In this paper, the results for solar abundances are summarized in a form that is illustrative and which facilitates comparison with the results from other equation of state calculations. 16 refs

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
350
Series
Astrophys. J.
Journal Page Range
300-308
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21055640
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ELEMENT ABUNDANCE; ELEMENTS; EQUATIONS OF STATE; HELIUM IONS; HYDROGEN IONS; IONIZATION; MIXTURES; STARS; TEMPERATURE DEPENDENCE; THERMODYNAMICS
Descriptors DEC
CHARGED PARTICLES; DISPERSIONS; EQUATIONS; IONS; QUANTITY RATIO