Chemical abundance behavior of Type I planetary nebulae

Details Chemical abundance behavior of Type I planetary nebulae Chemical abundance behavior of Type I planetary nebulae

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.207...47f&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 207, no. 1, p. 47-53

Astronomy and Astrophysics

Astrophysics

Abundance, Chemical Composition, Planetary Nebulae, Chemical Evolution, Correlation, Interstellar Matter

Scientific paper

In this work 13 Planetary Nebulae have been classified as Type I according to Peimbert's criteria (Peimbert, 1978). These objects have been added to a previous sample (Maciel and Faundez-Abans, 1985) and diagrams of O/H versus N/H, S/H, Ne/H and Ar/H, as well as N/H versus S/H, Ne/H and Ar/H have been drawn. All of them exhibit a tendency for linear correlation; moreover, the behavior of O and N versus Ar and S are very similar, with approximately the same slope. When the excitation class parameter was included in the diagrams, no clear tendency can be discerned, for any class.

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