Other
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...250..596a&link_type=abstract
Astrophysical Journal, Part 1, vol. 250, Nov. 15, 1981, p. 596-604.
Other
30
Chemical Composition, Planetary Nebulae, Stellar Evolution, Stellar Models, Stellar Spectrophotometry, Ultraviolet Spectra, Abundance, Interstellar Extinction, Iue, Spectrum Analysis
Scientific paper
Planetary nebula are now recognized as a penultimate stage in the evolution of many stars. Me 2-1 offers advantages meriting a detailed analysis. A description is presented of measurements regarding this object which have been conducted with a photoelectric scanner and a 3 m telescope Cassegrain image tube scanner. The chemical composition of Me 2-1 appears to fit well that of other planetaries. The values for N, O, and Ne fall slightly above those for an 'average' planetary, but Me 2-1 would not qualify as a nitrogen-rich object. When a comparison is made with the sun, there appears to be an enhancement of carbon, possibly slight enhancements of nitrogen and neon, but a slight reduction in oxygen.
Aller Lawrence H.
Czyzak Stanley J.
Keyes Charles D.
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