Statistics – Computation
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320..159a&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 320, Sept. 1, 1987, p. 159-177.
Statistics
Computation
77
Astrophysics, Magellanic Clouds, Planetary Nebulae, Stellar Mass, Ultraviolet Spectra, Chemical Composition, Computational Astrophysics, Nuclear Reactions, Physical Properties
Scientific paper
Nebular and central star parameters and elemental abundances of C, N, O, Ne, S, and Ar are presented for the planetary nebulae N2, N5, N43, N54, and N67 in the SMC and P2, P7, P9, P25, P33, and P40 in the LMC. The nebular chemical compositions are affected by nuclear processes in the precursor stars, which may not have been sufficiently massive to synthesize Ne, S, or Ar, which appear to be deficient with respect to their solar abundances by factors of roughly four and five for the LMC and SMC, respectively. Even after excluding nebulae formed by stars in which O apparently was destroyed by nuclear processes, O depletion in the LMC and SMC nebulae is significantly greater than in galactic planetaries. The estimated masses of the 12 remnant central stars range from 0.58 to 0.71 solar mass.
Aller Lawrence H.
Gull Theodore R.
Keyes Charles D.
Maran Stephen P.
Michalitsianos Andrew G.
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