The creation of planetary nebulae

Details The creation of planetary nebulae The creation of planetary nebulae

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....37..325f&link_type=abstract

Astronomy and Astrophysics, vol. 37, no. 2, Dec. 1974, p. 325-334.

Astronomy and Astrophysics

Astrophysics

15

Astronomical Models, Planetary Nebulae, Stellar Mass Ejection, Cosmology, Gas Flow, Hydrogen, Numerical Integration, Planetary Evolution, Stellar Envelopes, Stellar Luminosity, Stellar Structure

Scientific paper

A theoretical study is made of the possible mechanisms responsible for the ejection of planetary nebulae. An explanation is presented in which the progenitor of a planetary nebula becomes degenerate almost up to the surface before it ejects its hydrogen-rich outer shell. The energy needed to eject the nebula is supplied by partial hydrogen burning in the outflowing envelope. A two-parameter set of time-independent models representing mass-ejecting stars is found.

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