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| Paper: |
Predicting the Evolutionary Descendents of Sequence E Stars |
| Volume: |
451, 9th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
133 |
| Authors: |
Nie, J. D.; Wood, P. R.; Nicholls, C. P. |
| Abstract: |
Sequence E variables are close binary red giants that show ellipsoidal
light variations. They are likely to terminate their red giant evolution
by a common envelope (CE) event when the red giant fills its Roche lobe,
and produce close binary Planetary Nebulae (PNe). We made a Monte Carlo
simulation to predict the fraction of Planetary Nebulae Nuclei (PNNe) that
are post-CE binaries, using the observed frequency of sequence E binaries
in the LMC to normalize our calculations. We find that 10-16% of PNNe should
be short period, post-CE binaries. |
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