Abundances of Planetary Nebulae IC 418, IC 2165 and NGC 5882

Autor: Jeronimo Bernard-Salas, Stuart Pottasch, W. A. Feibelman, DA Beintema
Přispěvatelé: Astronomy
Jazyk: angličtina
Rok vydání: 2004
Předmět:
Zdroj: Astronomy & astrophysics, 423(2), 593-605. EDP Sciences
ISSN: 0004-6361
Popis: 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.
Databáze: OpenAIRE