X-rays from Planetary Nebulae
| dc.creator | Chu, You-Hua | |
| dc.creator | Guerrero, Martin A. | |
| dc.creator | Gruendl, Robert A. | |
| dc.date | 1999-09-06 | |
| dc.date.accessioned | 2026-07-07T02:33:07Z | |
| dc.date.available | 2026-07-07T02:33:07Z | |
| dc.description | Two sources of X-ray emission are expected from planetary nebulae: the hot central stars with $T_{eff} > 10^5$ K, and shocked fast stellar winds at temperatures of 10$^6 - 10^7$ K. The stellar emission and nebular emission differ in spatial distribution and spectral properties. Observations of X-ray emission from PNe may provide essential information on formation mechanisms and physical conditions of PNe. X-ray emission from PNe has been detected by Einstein and EXOSAT, but significant advances are made only after ROSAT became available. The ROSAT archive contains useful observations of ~80 PNe, of which 13 are detected. Three types of X-ray spectra are seen. Only three PNe are marginally resolved by the ROSAT instruments. In the near future, Chandra will provide X-ray observations with much higher angular and spectral resolution, and help us understand the central stars as well as the hot interiors of PNe. | |
| dc.description | 4 pages, proceedings of the workshop "Asymmetrical Planetary Nebulae II: From Origins to Microstructures" | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9909106 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9909106 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14716 | |
| dc.subject | Astrophysics | |
| dc.title | X-rays from Planetary Nebulae | |
| dc.type | text |