No CrossRef data available.
Article contents
Dependance of the Metallicity of Planetary Nebulae by the Galactic Height Above the Disk
Published online by Cambridge University Press: 07 August 2017
Abstract
Abundances of O, N, He, S, Ar have been derived from the observations of PN at various heights above the plane with the plasma diagnosis code HOPPLA (Köppen et al. 1991). A gradient in O and N appears in the first 1000 pc. No correlation is found above.
- Type
- VI. Planetary Nebulae in Galactic Systems
- Information
- Copyright
- Copyright © Kluwer 1993