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| Paper: |
The New Challenge of Planetary Nebula Research |
| Volume: |
513, Serendipities in the Solar System and Beyond |
| Page: |
249 |
| Authors: |
Hsia, C.-H. |
| Abstract: |
Although planetary nebulae (PNs) have been discovered for over two hundred years, we started to understand their origin and evolution within recent thirty years. Even today with observations covering the entire electromagnetic spectrum from radio to X-ray, there are still many unanswered questions on their structures and morphology. Recent theoretical and observational studys show that PNs and their progenitors (asymptotic giant branch (AGB) stars, post-AGBs, and pre-PNs) with multipolar shapes or spiral structures may be involved in the interactions of central binaries plus magnetic fields. |
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