Deuterium Burning and Pulsational Instabilities in Pre — Main — Sequence Stars
We have considered stellar pulsations in connection to T Tauri stars. In particular we have computed expected periods for fully convective contracting stars and the location of the beginning of intensive deuterium burning in the HR-diagram using modern values for the abundance of deuterium. If pulsational instabilities develop in this phase the expected periods range from a few hours to a few days. The results are discussed in relation to the star RY Lupi which exhibits rapid regular fluctuations in light.
KeywordsPulsational Period Fundamental Period Evolutionary Track Tauri Star Instability Strip
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