Asymmetric mass-loss on the AGB: examples from IRAS data

Details Asymmetric mass-loss on the AGB: examples from IRAS data Asymmetric mass-loss on the AGB: examples from IRAS data

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..103w&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

Agb Stars, Asymmetrical Mass-Loss, Iras Data, Asymmetrimass-Loss

Scientific paper

A wide-angle search for extended structures (arcs, filaments, cavities etc.) around ca. 400 Galactic planetary nebulae on IRAS SkyView maps revealed several candidates. Some of these dust structures can hardly be explained by chance superpositions of otherwise unrelated objects. They show clear signs of bi- or quadru-polar shape and will, due to their huge dimensions, probably have started to form already in the AGB phase. If so, then the mass-loss in the AGB phase is not spherically symmetric in a number of cases.

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