Publication Abstracts
Simon 1971
Simon, N.R., 1971: Second-order pulsations in polytropes. Astrophys. J., 164, 331-340, doi:10.1086/150842.
A theory due to Eddington is employed to calculate second-order corrections to the usual linear, quasi-adiabatic pulsational amplitudes. Such corrections are necessary in order to evaluate the pulsational stability of stars in thermal imbalance (dS0/dt ≠ 0). The second-order quantities are calculated, and their properties discussed, for a wide variety of polytropic models. Subsequently, a number of these models are tested for pulsational stability, and the conclusions drawn in an earlier, more preliminary work are re-evaluated on the basis of the results. In particular, it is found that stars in pre-main-sequence contraction are probably stable against pulsations energized via thermal imbalance.
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BibTeX Citation
@article{si06000k,
author={Simon, N. R.},
title={Second-order pulsations in polytropes},
year={1971},
journal={Astrophysical Journal},
volume={164},
pages={331--340},
doi={10.1086/150842},
}
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RIS Citation
TY - JOUR ID - si06000k AU - Simon, N. R. PY - 1971 TI - Second-order pulsations in polytropes JA - Astrophys. J. JO - Astrophysical Journal VL - 164 SP - 331 EP - 340 DO - 10.1086/150842 ER -
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