s-process enrichment in the planetary nebula NGC 3918. Results from deep echelle spectrophotometry
نویسندگان
چکیده
منابع مشابه
Three - dimensional photoionization modelling of the planetary nebula NGC 3918
The three-dimensional Monte Carlo photoionization code Mocassin has been applied to construct a realistic model of the planetary nebula NGC 3918. Three different geometric models were tried, the first being the biconical density distribution already used by Clegg et al. (1987). In this model the nebula is approximated by a biconical structure of enhanced density, embedded in a lower density sph...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2015
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stv1415