Proto-Planetary Nebulae
- 1 January 1997
- journal article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 180, 303-312
- https://doi.org/10.1017/s0074180900131134
Abstract
We review the properties of proto-planetary nebulae, highlighting the advances in our quantitative knowledge of these objects. The discussion focuses on the chemistry and morphology of their circumstellar envelopes and the chemistry and variability of their central stars.Keywords
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