Abundances of planetary nebulae NGC 7662 and NGC 6741

Authors
Pottasch, SR Beintema, DA Salas, JB Feibelman, WA
Citation
Sr. Pottasch et al., Abundances of planetary nebulae NGC 7662 and NGC 6741, ASTRON ASTR, 380(2), 2001, pp. 684-694
Citations number
31
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS
ISSN journal
14320746 → ACNP
Volume
380
Issue
2
Year of publication
2001
Pages
684 - 694
Database
ISI
SICI code
1432-0746(200112)380:2<684:AOPNN7>2.0.ZU;2-7
Abstract
The ISO and IUE spectra of the elliptical nebulae NGC7662 and NGC6741 are p resented. These spectra are combined with the spectra in the visual wavelen gth region to obtain a complete, extinction corrected, spectrum. The chemic al composition of the nebulae is then calculated and compared to previous d eterminations. The abundances found are compared to determinations made in other nebulae using ISO data. A discussion is given to see if possible evol utionary effects can be found from the abundance differences.