Mass-loaded jet models of fast low-ionization features in planetary nebulae

Details Mass-loaded jet models of fast low-ionization features in planetary nebulae Mass-loaded jet models of fast low-ionization features in planetary nebulae

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.302l..17r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 302, Issue 1, pp. L17-L19.

Astronomy and Astrophysics

Astronomy

19

Scientific paper

We propose that the fast low-ionization features (FLIERS) observed in some planetary nebulae are recombination zones behind stationary supersonic recombination fronts produced in mass-loaded jets. The main physical characteristics can be reproduced by jets with opening angles of a few degrees and momentum fluxes of ~ 1028 g cm s-2, which mass-load from embedded clumps in the nebular envelope. Very simple considerations based on inferred clump masses imply that the nebular envelope contains ~ 600-60, 000 clumps. Although this range is wide, it is not incompatible with clump numbers estimated from observational data.

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