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Ciencia del cometa. 67P/Churyumov-Gerasimenko propiedades de la superficie como se deriva de las imágenes panorámicas
J-P Bibring1, Y Langevin2, J Carter2
1Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France. bibring@ias.u-psud.fr.
Science (New York, N.Y.)
|August 1, 2015
Resumen
Las imágenes del analizador de infrarrojos y visibles del cometa (CIVA) en Philae revelaron la superficie fracturada del cometa 67P/Churyumov-Gerasimenko. Estos hallazgos ofrecen información sobre el material cometario prístino y la formación temprana del sistema solar.
Área de la Ciencia:
- Ciencias planetarias
- Ciencia de los cometas
- Astrogeología
Sus antecedentes:
- La estructura y la composición de los cometas son clave para comprender la formación planetaria.
- El cometa 67P / Churyumumov-Gerasimenko proporciona una ventana única en el sistema solar temprano.
Objetivo del estudio:
- Para caracterizar los materiales de la superficie del cometa 67P/Churyumumov-Gerasimenko utilizando imágenes in situ.
- Para analizar la estructura microscópica, las escalas de grano y el albedo de los materiales de la superficie del cometa.
Principales métodos:
- Utilizó el instrumento Comet Infrared and Visible Analyzer (CIVA) en el módulo de aterrizaje Philae.
- Se obtuvieron imágenes de alta resolución de la superficie del cometa en dos momentos distintos: después del aterrizaje y después de la posición de descanso final.
Principales resultados:
- El experimento CIVA capturó imágenes detalladas de la superficie del cometa.
- El análisis reveló una superficie fracturada con estructuras complejas y diversos tamaños de grano y albedos.
- Las características superficiales observadas son consistentes con el material cometario prístino.
Conclusiones:
- La superficie del cometa 67P/Churyumumov-Gerasimenko exhibe fracturas complejas y variadas propiedades del material.
- Estas características sugieren la presencia de material cometario prístino, ofreciendo información sobre la evolución del sistema solar.
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