Relative fluxes in 11 type I PN (Costa+, 1996)

Details Relative fluxes in 11 type I PN (Costa+, 1996) Relative fluxes in 11 type I PN (Costa+, 1996)

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ycat..33130924c&link_type=abstract

VizieR On-line Data Catalog: J/A+A/313/924. Originally published in: 1996A&A...313..924C

Mathematics

Logic

Planetary Nebulae, Abundances

Scientific paper

We report new spectroscopic observations for a sample of "bona fidae" type I planetary nebulae, which satisfy kinematical, distance to the galactic plane and morphological criteria. Special care was taken to estimate physical parameters as electron temperature and density. The mean sample oxygen abundance ɛ(O)=8.64+/-0.23 confirms our earlier results: a deficiency of about 0.25dex with respect to the solar value. We emphasize that the present result is entirely compatible with new stellar (Cunha & Lambert 1994ApJ...426..170C) and diffuse gas data (Meyer et al. 1994ApJ...437L..59M) recently obtained in the Orion complex. (1 data file).

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