Current Unsolved Problems in Planetary Nebulae Research
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914506427334656 |
|---|---|
| author | Kwok, Sun Balick, Bruce Chu, You-Hua Hrivnak, Bruce J. López, Alberto Parker, Quentin Sahai, Raghvendra Zijlstra, Albert |
| author_facet | Kwok, Sun Balick, Bruce Chu, You-Hua Hrivnak, Bruce J. López, Alberto Parker, Quentin Sahai, Raghvendra Zijlstra, Albert |
| contents | While there has been significant progress in our understanding of the origin and evolu-tion of planetary nebulae in the last 50 years, there remain several unsolved problems. These include the true 3D morphological structure of the nebulae, origin of multipolar nebulae, the dust and molecular distribution relative to the optical nebulosity, large-scale structures outside of the main nebulae, the relevance of binarity to planetary nebulae evolution, and a precise definition of the planetary nebula phenomenon. The long-standing problem of elemental abundance discrepancy still remains unsolved. In this paper, we summarize current observations related to these problems and present possible future directions to tackle them. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22999 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Current Unsolved Problems in Planetary Nebulae Research Kwok, Sun Balick, Bruce Chu, You-Hua Hrivnak, Bruce J. López, Alberto Parker, Quentin Sahai, Raghvendra Zijlstra, Albert Solar and Stellar Astrophysics Astrophysics of Galaxies While there has been significant progress in our understanding of the origin and evolu-tion of planetary nebulae in the last 50 years, there remain several unsolved problems. These include the true 3D morphological structure of the nebulae, origin of multipolar nebulae, the dust and molecular distribution relative to the optical nebulosity, large-scale structures outside of the main nebulae, the relevance of binarity to planetary nebulae evolution, and a precise definition of the planetary nebula phenomenon. The long-standing problem of elemental abundance discrepancy still remains unsolved. In this paper, we summarize current observations related to these problems and present possible future directions to tackle them. |
| title | Current Unsolved Problems in Planetary Nebulae Research |
| topic | Solar and Stellar Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2604.22999 |