Evolution from the Asymptotic Giant Branch to Planetary Nebulae

Details Evolution from the Asymptotic Giant Branch to Planetary Nebulae Evolution from the Asymptotic Giant Branch to Planetary Nebulae

Publishing date

Nov 2005

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..804..187k&link_type=abstract

Journals

PLANETARY NEBULAE AS ASTRONOMICAL TOOLS: International Conference on Planetary Nebulae as Astronomical Tools. AIP Conference Pr

Science

Astronomy and Astrophysics

Field

Astronomy

Additional info 3

Stellar Evolution, Giant Stars, Planetary Nebulae, Stellar Winds, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Giant And Subgiant Stars, Planetary Nebulae, Mass Loss And Stellar Winds

Type

Scientific paper

Abstract

The post-asymptotic-giant-branch (post-AGB) or pre-planetary nebulae (PPN) phase of stellar evolution plays an important role in the dynamical shaping of PNe. While the interacting stellar winds model has achieved tremendous success in the explaining of the 1-D structures (shells, crowns, haloes) of PNe, the origins of arcs, rings, and multipolar structures remain a mystery. The synthesis of gas-phase molecules and solid-state compounds that begin in the stellar winds from AGB stars also undergo significant evolution during the post-AGB phase. Organic compounds of both aliphatic and aromatic structures are produced, which carries significant implications on the chemical enrichment of the interstellar medium.

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