Abundances of Planetary Nebulae IC 418, IC 2165 and NGC 5882
Pottasch, S. R.;
Beintema, D. A.;
Feibelman, W. A.;
Bernard-Salas, J.
Netherlands, United States
Abstract
The ISO and IUE spectra of the elliptical nebulae NGC 5882, IC 418 and IC 2165 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. A discussion is given of: (1) the recombination line abundances; (2) the exciting stars of the nebulae; and (3) possible evolutionary effects.
Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, The Netherlands and the United Kingdom) and with the participation of ISAS and NASA.
2004
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Astronomy and Astrophysics
ISO
IUE
36
