High-Resolution Imaging of Two Bipolar Proto--Planetary Nebulae
Abstract
Sub-arcsecond resolution V and I images have been obtained for two proto-planetary nebulae. Both are found to show a definite bipolar morphology. A circumstellar disk is clearly seen in the V - I color image, suggesting that the bipolar lobes are due to starlight scattered into the polar openings. This indicates that bipolar morphologies develop early in the evolution of planetary nebulae, even before the onset of photoionization.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 1996
- DOI:
- 10.1086/178063
- Bibcode:
- 1996ApJ...472..287K
- Keywords:
-
- STARS: CIRCUMSTELLAR MATTER;
- ISM: PLANETARY NEBULAE: GENERAL;
- STARS: AGB AND POST-AGB