Spatially resolved spectroscopy of WR ring nebulae. III - New results and chemical properties of the sample

Bibcode
1992A&A...259..629E
Esteban, C.; Vilchez, J. M.; Smith, L. J.; Clegg, R. E. S.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 2, p. 629-648.

Advertised on:
6
1992
Number of authors
4
IAC number of authors
2
Citations
98
Refereed citations
81
Description
The paper presents detailed high-spatial-resolution spectroscopy of seven WR ring nebulae, observed at several telescopes in both hemispheres. These are Anon (MR 26), Anon (MR 100), G 2.4 + 1.4, L 69.8 + 1.74, NGC 3199, RCW 104, and S 308. Using line diagnostic diagrams, it is found that photoionization is the main excitation source in the sample. Physical conditions and chemical abundances are derived for as many of the observed slit positions as possible in each nebula.
Type
Refereed
H II regions
Stellar evolution
Wolf-Rayet stars

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