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Updated: Apr 18, 2026

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Published on: July 1, 2019
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Ciencia de los cometas. Nacimiento de la magnetosfera de un cometa: un manantial de iones de agua
Hans Nilsson1, Gabriella Stenberg Wieser2, Etienne Behar3
1Swedish Institute of Space Physics, Post Office Box 812, 981 28 Kiruna, Sweden. Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Rymdcampus 1, 981 28 Kiruna, Sweden. hans.nilsson@irf.se.
Resumen
Rosetta también observó el cometa 67P/Churyumov-Gerasimenko.
Área de la Ciencia:
- Ciencias espaciales Ciencias espaciales Ciencias.
- Ciencia de la ciencia de los cometas.
- La física del plasma es la física del plasma.
Sus antecedentes:
- La misión Rosetta estudió la interacción del cometa 67P/Churyumov-Gerasimenko con el viento solar.
- Las atmósferas cometarias se forman a partir de la sublimación y se ionizan, influyendo en la interacción del viento solar.
Objetivo del estudio:
- Para rastrear la evolución de la atmósfera del cometa 67P desde la penetración inicial del viento solar hasta la repulsión.
- Para analizar la estructura espacial de las primeras interacciones entre el viento solar y los cometas.
Principales métodos:
- Utilizó el analizador de composición iónica del Consorcio de Plasma Rosetta.
- Las poblaciones de iones monitoreadas y los átomos energéticamente neutros de >3.6 a ~3.3 unidades astronómicas.
Principales resultados:
- Detectó la transición de la permeación del viento solar a la repulsión atmosférica del viento solar.
- Caracterizó la población de iones de agua cercana al cometa, incluidos los iones acelerados y locales.
- Flujos estimados de especies iónicas y átomos energéticamente neutros.
Conclusiones:
- La ionosfera y la presión de plasma del cometa en desarrollo establecen límites contra el viento solar.
- Las primeras interacciones entre el viento solar y los cometas se caracterizan por distintas poblaciones de iones y flujos atómicos neutrales.
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