Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.212...61f&link_type=abstract
Astrophysics and Space Science, vol. 212, nos. 1-2, p. 61-65
Astronomy and Astrophysics
Astrophysics
Planetary Nebulae, Plasma-Particle Interactions, Stellar Envelopes, Stellar Winds, Comets, Dynamic Models, Planets, Ring Structures
Scientific paper
In the present poster we suggest that some of the structures observed in the envelopes of planetary nebulae are caused by the interaction of central star wind and radiation with preplanetary nebula debris: planets, moons, minor objects and ring and ring arcs. Recently considerable amount of planetary material has been reported to exist around solar type stars, this debris could be evaporated during the envelope ejection and alter the chemical abundance and produce some of the envelope inhomogeneities. If there are massive enough rings of material surrounding the progenitor and planets in their vicinity, arc rings could be formed. If the rings are viewed pole on when the envelope is detached from the central star, it will interact with the arc ring material and produce 'ansae' and pedal and garden-hose-shape structures observed in some planetaries.
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