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The o II recombination line abundance problem in planetary nebulae
We present new observations of O II recombination lines in ten bright plane-tary nebulae, along with spatially-resolved measurements of O II and [O III] in theRing nebula NGC 6720, to study the discrepancy between abundances derived fromO II recombination lines and those derived from collisionally-e...
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| Publicado no: | Revista Mexicana de Astronomía y Astrofísica |
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| Main Authors: | , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
Universidad Nacional Autónoma de México
2001
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| Assuntos: | |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=57101006 |
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