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Comentario sobre " Prueba experimental de autoprotección en el vacío por fotodissociación ultravioleta de CO"
Qing-Zhu Yin1, Xiaoyu Shi, Chao Chang
1Department of Geology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA. qyin@ucdavis.edu
Science (New York, N.Y.)
|June 23, 2009
Resumen
La fotodisociación del monóxido de carbono no crea un depósito atómico de oxígeno. El estudio anterior asumió incorrectamente desplazamientos espectrales insignificantes y utilizó una fuente de luz de baja resolución, invalidando sus conclusiones.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Química de la atmósfera química de la atmósfera
- La espectroscopia es una técnica de espectroscopia.
Sus antecedentes:
- Investigaciones anteriores sugirieron que la fotodisociación del monóxido de carbono (CO) genera depósitos atómicos de oxígeno sin auto blindaje.
- Esta afirmación se basó en experimentos que analizaron las bandas vibratorias de los isótopos de CO.
Objetivo del estudio:
- Reevaluar las conclusiones de Chakraborty y otros. con respecto a la fotodisociación del monóxido de carbono.
- Para identificar defectos en la metodología y supuestos del estudio anterior.
Principales métodos:
- Análisis de desplazamientos espectrales para las bandas vibratorias C16O, C17O y C18O.
- Crítica de la fuente de luz de baja resolución empleada en trabajos experimentales previos.
Principales resultados:
- La suposición de desplazamientos espectrales insignificantes para C16O, C17O y C18O es incorrecta.
- La fuente de luz de baja resolución limita la precisión de las observaciones experimentales.
Conclusiones:
- No se admite la generación de un depósito de oxígeno atómico anormalmente enriquecido a través de la fotodisociación de monóxido de carbono sin auto blindaje.
- Las conclusiones previas se basan en suposiciones erróneas y limitaciones experimentales.
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