Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.238..125n&link_type=abstract
Astrophysics and Space Science, Volume 238, Issue 1, pp.125-130
Astronomy and Astrophysics
Astrophysics
3
Symbiotic Stars, Wolf-Rayet Stars, Planetary Nebulae
Scientific paper
Symbiotic systems, in particular symbiotic novae, have been suggested to be very early stages of planetary nebulae. Some of them have been described as going through a Wolf-Rayet phase. We argue that there may be a direct relation between symbiotic objects and planetary nebulae, and that the Wolf-Rayet phase is connected to an active spell of the hot companion. Symbiotic stars could lead to planetary nebulae with two central stars with different radiation temperatures and luminosities, where each has the power to ionize a planetary nebula on its own.
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