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Meteoros extraterrestres: un meteorito marciano y su cometa padre
Franck Selsis1, Mark T Lemmon, Jérémie Vaubaillon
1Centre de Recherche Astronomique de Lyon, Ecole Normale Supérieure, 69364 Lyon, France. franck.selsis@ens-lyon.fr
Nature
|June 3, 2005
Resumen
Marte puede tener sus propias lluvias de meteoros, similares a la lluvia de Leónidas de la Tierra. Una racha observada por el rover Spirit sugiere una lluvia regular de meteoros vinculada al cometa Wiseman-Skiff, que podría actuar como cefeidas marcianas.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- Ciencia de los Cometas Ciencia de los Cometas
Sus antecedentes:
- Las lluvias de meteoros son causadas por planetas que pasan a través de las huellas de los cometas.
- La Tierra experimenta lluvias regulares de meteoros, como las Leonidas del cometa Tempel-Tuttle.
- Fenómenos similares se anticipan en otros planetas, incluido Marte.
Objetivo del estudio:
- Para investigar una misteriosa racha observada por el rover Spirit en Marte.
- Para determinar si el fenómeno observado es consistente con una lluvia de meteoros regular.
- Para identificar la fuente potencial cometaria de tal lluvia de meteoros marcianos.
Principales métodos:
- Análisis de imágenes de la cámara panorámica del rover Spirit.
- Examen del tiempo y la orientación de una raya celeste observada.
- Caracterización de la forma de la curva de luz de la raya.
Principales resultados:
- Una raya celeste fue observada el 7 de marzo por el rover Spirit.
- Las características de la racha (tiempo, orientación, curva de luz) se alinean con una lluvia de meteoros regular.
- Los hallazgos sugieren una asociación con el cometa Wiseman-Skiff.
Conclusiones:
- Es probable que Marte experimente lluvias de meteoros regulares.
- El cometa Wiseman-Skiff es una fuente potencial para una lluvia de meteoros marcianos.
- El evento observado podría caracterizarse como cefeidas marcianas, análogas a las lluvias de meteoros terrestres.
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