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Detección de C60 y C70 en una joven nebulosa planetaria
Jan Cami1, Jeronimo Bernard-Salas, Els Peeters
1Department of Physics and Astronomy, University of Western Ontario, London, Ontario N6A 3K7, Canada. jcami@uwo.ca
Science (New York, N.Y.)
|July 24, 2010
Resumen
Fullerenos como C60 y C70 han sido detectados en la nebulosa planetaria Tc 1. Este descubrimiento confirma que estas moléculas complejas pueden formarse de manera eficiente en las duras condiciones del espacio exterior.
Área de la Ciencia:
- La astronomía y la astrofísica.
- La astroquímica es astroquímica.
Sus antecedentes:
- El polvo y las moléculas interestelares son cruciales para comprender los entornos cósmicos.
- Las estrellas gigantes asintóticas y las nebulosas planetarias son sitios clave para la formación y el procesamiento del polvo.
Objetivo del estudio:
- Para investigar la composición química de la peculiar nebulosa planetaria Tc 1.
- Para identificar la presencia y abundancia de fullerenos en el entorno de Tc 1.
Principales métodos:
- Se utilizó espectroscopia infrarroja para analizar las emisiones espectrales de Tc 1.
- El análisis se centró en la identificación de las firmas espectrales características de las moléculas C60 y C70.
Principales resultados:
- El espectro infrarrojo de Tc 1 reveló una clara emisión de fullerenos fríos y neutros C60 y C70.
- Estos fullerenos constituyen un pequeño porcentaje del carbono cósmico total en la región observada.
Conclusiones:
- La formación de fullereno es un proceso eficiente en el espacio bajo condiciones adecuadas.
- La detección en Tc 1 proporciona una fuerte evidencia de la síntesis extraterrestre de fullerenos.
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