Chemical abundances and masses of the haloes around the planetary nebulae NGC 6543 and NGC 6826

Details Chemical abundances and masses of the haloes around the planetary nebulae NGC 6543 and NGC 6826 Chemical abundances and masses of the haloes around the planetary nebulae NGC 6543 and NGC 6826

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...222..219m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 222, no. 1-2, Sept. 1989, p. 219-226.

Astronomy and Astrophysics

Astrophysics

40

Halos, Planetary Nebulae, Red Giant Stars, Stellar Evolution, Stellar Mass Ejection, Abundance, Chemical Composition, Mass Distribution

Scientific paper

Spatial resolved low resolution spectroscopy of the haloes around the planetary nebulae NGC 6543 and NGC 6826 were conducted. The results imply that the radiation is thermal and not due to dust reflection. From those data chemical abundances and masses were calculated. Chemical abundances decrease in the haloes, while masses increase up to ten times in NGC 6543 reaching a value of 1 solar mass. The mass loss required to form these haloes coincides with that expected at the beginning of the evolution off the AGB.

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