Abundances of Planetary Nebulae NGC 7662 and NGC 6741

Authors :: Pottasch, S. R
Beintema, D. A
Salas, J. Bernard
Feibelman, W. A
Source :: Astronomy and Astrophysics. 380
Publication Year :: 2001
Publisher :: United States: NASA Center for Aerospace Information (CASI), 2001.
Abstract: The ISO and IUE spectra of the elliptical nebulae NGC 7662 and NGC 6741 are presented. These spectra are combined with the spectra in the visual wavelength region to obtain a complete, extinction corrected, .spectrum. The chemical composition of the nebulae is then calculated and compared to previous determinations. The abundances found are compared to determinations made in other nebulae using ISO data. A discussion is given to see if possible evolutionary effects can be found from the abundance differences.

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