Publication Abstracts

Stothers 1974

Stothers, R.B., 1974: The apsidal-motion test for models of main-sequence stars. Astrophys. J., 194, 651-655, doi:10.1086/153286.

Apsidal-motion constants, k2, have been determined for models of homogeneous main-sequence stars constructed with the new "Thomas-Fermi" opacities of Carson. These models are similar to those constructed with the "hydrogenic" opacities of Cox and Stewart up to ∼7 M, but yield smaller values of k2 at higher masses. Nevertheless, the new theoretical constants are still systematically too large compared with most of the empirical constants known for members of well-observed binary systems. Uniform rotation is found to lower the theoretical constants only slightly. The effect of normal evolution during core hydrogen burning, however, produces good detailed agreement with observations. The primary of α Vir is probably evolving normally if Carson's opacities are adopted.

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BibTeX Citation

@article{st09510q,
  author={Stothers, R. B.},
  title={The apsidal-motion test for models of main-sequence stars},
  year={1974},
  journal={Astrophysical Journal},
  volume={194},
  pages={651--655},
  doi={10.1086/153286},
}

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RIS Citation

TY  - JOUR
ID  - st09510q
AU  - Stothers, R. B.
PY  - 1974
TI  - The apsidal-motion test for models of main-sequence stars
JA  - Astrophys. J.
JO  - Astrophysical Journal
VL  - 194
SP  - 651
EP  - 655
DO  - 10.1086/153286
ER  -

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