| タイトル | The core mass-radius relation for giants - A new test of stellar evolution theory |
| 著者（英） | Joss, P. C.; Rappaport, S.; Lewis, W. |
| 著者所属（英） | Massachusetts Inst. of Tech. |
| 発行日 | 1987-08-01 |
| 言語 | eng |
| 内容記述 | It is demonstrated here that the measurable properties of systems containing degenerate dwarfs can be used as a direct test of the core mass-radius relation for moderate-mass giants if the final stages of the loss of the envelope of the progenitor giant occurred via stable critical lobe overflow. This relation directly probes the internal structure of stars at a relatively advanced evolutionary state and is only modestly influenced by adjustable parameters. The measured properties of six binary systems, including such diverse systems as Sirius and Procyon and two millisecond pulsars, are utilized to derive constraints on the empirical core mass-radius relation, and the constraints are compared to the theoretical relation. The possibility that the final stages of envelope ejection of the giant progenitor of Sirius B occurred via critical lobe overflow in historical times is considered. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 87A49842 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/376144 |
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