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Cambios de décadas de duración del viento interestelar a través de nuestro sistema solar
P C Frisch1, M Bzowski, G Livadiotis
1Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA. frisch@oddjob.uchicago.edu
Science (New York, N.Y.)
|September 7, 2013
Resumen
El Sol es el Sol.
Área de la Ciencia:
- * Heliofísica y física espacial.
- * Interacciones entre el medio interestelar y el sistema solar.
Sus antecedentes:
- * La heliosfera está formada por el movimiento del Sol a través del medio interestelar local.
- * El viento interestelar ha sido medido por naves espaciales durante cuatro décadas.
- * Las mediciones anteriores indicaron una dirección de flujo específica de los átomos interestelares.
Objetivo del estudio:
- * Para analizar las tendencias a largo plazo en la dirección del flujo interestelar.
- * Para conciliar los nuevos datos con las observaciones históricas.
- * Para determinar la significación estadística de los cambios observados en el flujo interestelar.
Principales métodos:
- * Análisis de datos de múltiples misiones de naves espaciales (Explorador del límite interestelar, Ulises, etc.) En el caso de las personas que se encuentran en situación de exclusión social.
- * Comparación de las mediciones en tres épocas de observación distintas (1972-1978, 1992-2002, 2009-2010).
- * Evaluación estadística de las tendencias en la longitud eclíptica del flujo interestelar.
Principales resultados:
- * Datos recientes sugieren una dirección de entrada diferente para los átomos neutros interestelares.
- * Se detectó un aumento lineal estadísticamente significativo en la longitud eclíptica del flujo interestelar a lo largo del tiempo.
- * La consideración de todos los datos, incluidas las incertidumbres, apoya esta tendencia observada.
Conclusiones:
- * La dirección del material interestelar que fluye hacia la heliosfera ha cambiado evidentemente con el tiempo.
- * Este hallazgo tiene implicaciones para la comprensión de la interacción dinámica entre el sistema solar y el medio interestelar local.
- * El monitoreo a largo plazo es crucial para caracterizar la evolución de las condiciones heliosféricas.
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