Planetary nebulae and stellar evolution

Details Planetary nebulae and stellar evolution Planetary nebulae and stellar evolution

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305..670m&link_type=abstract

Nature (ISSN 0028-0836), vol. 305, Oct. 20, 1983, p. 670, 671.

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Planetary Nebulae, Stellar Evolution, Stellar Mass, Abundance, White Dwarf Stars

Scientific paper

Newly defined characteristics of planetary nebulae (PN) derived from analysis of a photometric survey of 57 PN are reported. The data were combined with measurements of 27 other PN made since 1918 and were found to indicate core masses ranging from 0.55-1.0 solar mass. N/O elemental abundance ratios observed were correlated with the planetary nuclei masses, and were in direct proportion. IUE data on PN that overlapped a large part of the survey indicated that the PN in the galactic disk are more massive than PN in the halo. It is suggested that PN evolve into white dwarfs, a hypothesis supported by astrometric solutions for three nearby visual binaries featuring white dwarfs with well-determined masses. It is noted, however, that PN with masses exceeding one solar mass have been sighted in the Magellanic Clouds.

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