Solar-terrestrial response to large extension or long-duration solar gamma ray events
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Resumen
Durante el gran evento de rayos gamma del 29 de septiembre de 1989 se observaron líneas de rayos gamma de una región alrededor de 25 grados del sitio de la ráfaga. El mecanismo que parece más plausible para explicar la aceleración de partículas responsables de los rayos gamma es un choque producido por una eyección de masa coronal (EMC). Sin embargo, no existe a la fecha una explicación de aceptación general. Por otro lado, en junio de 1991, se observaron por lo menos tres eventos de rayos gamma de larga duración. De igual manera, ninguno de los modelos que se han propuesto para explicar estos eventos es convincente. En este trabajo analizamos los datos de plasma y partículas a la órbita de la Tierra para estos dos tipos de eventos y discutimos la posibilidad de que algunas de las perturbaciones en el medio interplanetario se originaron en la cromosfera fuera de regiones activas.
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