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Efectos de las erupciones solares en la ionosfera de Marte
Michael Mendillo1, Paul Withers, David Hinson
1Center for Space Physics, Boston University, Boston, MA 02215, USA.
Science (New York, N.Y.)
|February 25, 2006
Resumen
Las erupciones solares mejoran significativamente la ionosfera de Marte hasta en un 200%. Estos efectos, impulsados por flujos de rayos X suaves mejorados sobre la luz ultravioleta, fueron observados por el Mars Global Surveyor.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Física solar Física solar es la física de la energía solar.
- Ciencias de la atmósfera Ciencias atmosféricas.
Sus antecedentes:
- Las atmósferas planetarias reaccionan a las llamaradas solares de rayos X y ultravioleta (UV).
- Las mediciones continuas y confiables de estos efectos de llamaradas solares están disponibles principalmente para la Tierra.
- Comprender estas respuestas atmosféricas en otros planetas es crucial para la planetología comparativa.
Objetivo del estudio:
- Informar y analizar los efectos de las erupciones solares en la ionosfera marciana.
- Para cuantificar las mejoras en la ionosfera marciana causadas por eventos de llamaradas solares.
- Para investigar las contribuciones relativas de los rayos X blandos y la radiación UV durante las erupciones solares en Marte.
Principales métodos:
- Se utilizaron datos de la nave espacial Mars Global Surveyor.
- Analizó las observaciones de abril de 2001, centrándose específicamente en los eventos de erupciones solares.
- Modelado atmosférico empleado para comprender la dependencia de la altitud de los efectos de llamaradas.
Principales resultados:
- Se han observado mejoras de hasta un 200% en la ionosfera marciana durante las erupciones solares.
- Determinó que las mejoras relativas en los flujos suaves de rayos X excedieron significativamente a las de los flujos UV.
- Estableció un vínculo entre la intensidad de las erupciones solares y la respuesta ionosférica en Marte.
Conclusiones:
- Las erupciones solares tienen un impacto sustancial y medible en la ionosfera marciana.
- Los rayos X blandos juegan un papel más dominante que la radiación UV en la conducción de estas mejoras ionosféricas en Marte.
- Los estudios comparativos de las respuestas atmosféricas solar-terrestres y solar-marcianas son esenciales.
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