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Extracción sustancial de CO del cometa Hale-Bopp a una gran distancia heliocéntrica
Nature
|March 14, 1996
Resumen
El cometa Hale-Bopp exhibe un brillo inusual debido a la desgasificación de monóxido de carbono (CO), no a la sublimación del hielo de agua. Esta sublimación de CO está impulsando su actividad a una gran distancia del sol.
Área de la Ciencia:
- La astronomía es la astronomía.
- Ciencia de los Cometas Ciencia de los Cometas
- La astroquímica es astroquímica.
Sus antecedentes:
- El cometa C/1995 O1 (Hale-Bopp) fue descubierto excepcionalmente brillante a 7 UA.
- El brillo de los cometas suele ser el resultado de la reflexión de los granos de polvo impulsada por la sublimación de hielo volátil.
- La sublimación del hielo de agua, común cerca del sol, es poco probable a la distancia actual de Hale-Bopp.
Objetivo del estudio:
- Investigar la fuente de la actividad del cometa Hale-Bopp a una gran distancia heliocéntrica.
- Determinar las especies volátiles responsables del brillo observado del cometa y de la salida de gases.
Principales métodos:
- Detección de la emisión de CO del cometa Hale-Bopp.
- Buscó otras especies volátiles, pero no las detectó.
Principales resultados:
- Confirmado la emisión de CO de Hale-Bopp en niveles que indican una desgasificación significativa.
- La actividad se atribuye a la sublimación del monóxido de carbono, no al hielo de agua.
Conclusiones:
- La sublimación del monóxido de carbono (CO) es el principal impulsor de la actividad del cometa Hale-Bopp a grandes distancias heliocéntricas.
- Las futuras observaciones pueden revelar el inicio de la sublimación de otras especies volátiles a medida que el cometa se acerca al sol.
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