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Keywords

ISM: abundances
ISM: individual objects: NGC 6888
ISM: individual objects: NGC 7635
stars: massive

How to Cite

The Carbon Content in Galactic Ring Nebulae: CNO Nucleosynthesis in Massive Stars. (2014). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 44(1), 19-19. https://astronomia.unam.mx/journals/rmxac/article/view/2014rmxac..44...19m
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Abstract

We have determined C abundances in two Galactic ring nebulae. The C enrichment patterns are really puzzling, showing C overabundances that do not fit the predictions of stellar evolution models.