منابع مشابه
The O Ii Recombination Line Abundance Problem in Planetary Nebulae
Presentamos observaciones de ĺıneas de recombinación de O II en diez nebulosas planetarias brillantes, y mediciones de O II y [O III] con resolución espacial en NGC 6720. Esto es con el fin de estudiar la discrepancia entre las abundancias calculadas con ĺıneas de recombinación de O II y aquellas derivadas de ĺıneas de excitación colisional de [O III]. Observamos una gran variación en la discre...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society: Letters
سال: 2006
ISSN: 1745-3925,1745-3933
DOI: 10.1111/j.1745-3933.2005.00119.x