Abundances and ADFs in PNe with WC central stars

Details Abundances and ADFs in PNe with WC central stars Abundances and ADFs in PNe with WC central stars

2011-09-09

arxiv.org/abs/1109.1957v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Poster contribution (2 pages, 1 figure) to IAU Symposium 283: "Planetary Nebulae: An Eye to the Future" held in Puerto de la C

Scientific paper

We present preliminary results obtained from the analysis of very deep echelle spectra of a dozen planetary nebulae with [WC] or weak emission lines (wels) central stars. The computed abundance discrepancy factors (ADFs) are moderate, with values lower than 4. In principle, no evidence of the H-poor metal enriched inclusions proposed by Liu et al. (2000) have been found. However, a detailed analysis of the data is in progress.

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