Abstract
view Abstract Citations (8) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Multiple Solutions and Secular Stability of a 7 M⊙ Star with Core Helium and Shell Hydrogen Burning Lauterborn, D. ; Siquig, R. A. Abstract A star of M = 7 M⊙ and 1!Hp = 0.5, with a helium-burning core and a hydrogen-burning shell source, is shown to permit three equilibrium solutions (i.e., solutions in hydrostatic and thermal equilibrium) over a certain range of core masses. Two of these solutions are secularly stable, while the third solution is unstable. This is shown both by an "evolutionary" stability test and by direct computation of the eigenvalues of the secular problem. Subject headings: Cepheids and W Virginis stars - instabilities - interiors, stellar - stellar evolution Publication: The Astrophysical Journal Pub Date: January 1974 DOI: 10.1086/152628 Bibcode: 1974ApJ...187..299L full text sources ADS |
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