Results 301 to 310 of about 485,760 (336)

Horizontal-branch star models

Astrophysics and Space Science, 1969
Evolutionary tracks of 0.9M ⊙, 0.7M ⊙ and 0.6M ⊙ models for Population II stars have been computed in the post-red giant phase. The stars are initially composed of a helium core containing a mass fraction equal to 0.9 and of a hydrogen-rich envelope.
Alvio Renzini   +2 more
openaire   +2 more sources

Horizontal Branch Stars

1974
The properties of horizontal branch stars depend on the amount of carbon, nitrogen and oxygen that they contain but all theoretical models have difficulty in explaining those stars right at the blue end of the horizontal branch. The length of the theoretical evolutionary tracks always appears to be less than what is observed.
J. E. Hesser, R. J. Tayler
openaire   +2 more sources

Horizontal-Branch Stars

2015
Most stars with \(M\stackrel{
Georges Michaud   +2 more
openaire   +2 more sources

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