Morphologies of Planetary Nebulae Ejected by Close-Binary Nuclei
Abstract
This paper examines the observed morphologies of planetary nebulae (PNs) that are known to have close-binary nuclei, in the light of theoretical studies of common-envelope ejection followed by wind shaping. Some of the physical aspects of the spiraling-in process and PN ejection are described, and the subsequent shaping of the PN via a stellar wind is examined. A list of the PNs known to have close-binary nuclei is presented together with the imagery of these PNs. The observed morphologies are discussed in the context of the theoretical predictions.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1990
- DOI:
- 10.1086/168789
- Bibcode:
- 1990ApJ...355..568B
- Keywords:
-
- Binary Stars;
- Planetary Nebulae;
- Stellar Evolution;
- Stellar Structure;
- Asymptotic Giant Branch Stars;
- Charge Coupled Devices;
- Iue;
- Stellar Envelopes;
- Stellar Mass Ejection;
- Stellar Winds;
- Astrophysics;
- HYDRODYNAMICS;
- NEBULAE: PLANETARY;
- NEBULAE: STRUCTURE;
- STARS: BINARIES;
- STARS: EVOLUTION