Predicting the Evolutionary Descendents of Sequence E Stars
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.
- Publication:
-
9th Pacific Rim Conference on Stellar Astrophysics
- Pub Date:
- December 2011
- DOI:
- 10.48550/arXiv.1111.4265
- arXiv:
- arXiv:1111.4265
- Bibcode:
- 2011ASPC..451..133N
- Keywords:
-
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 6 pages, 2 figures