X-ray emission from Planetary Nebulae
- 1 January 1997
- journal article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 180, 214-215
- https://doi.org/10.1017/s0074180900130360
Abstract
X-ray emission from planetary nebulae (PNe) may originate from two sources: central stars which are 100,000–200,000 K will emit soft X-rays, and shocked fast stellar winds reaching 106–107 K will emit harder X-rays. The former are point sources, while the shocked winds are expected to be extended sources emitting continuously out to the inner wall of the visible nebular shell (Weaver et al. 1977; Wrigge & Wendker 1996).Keywords
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