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Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids
Published on: March 5, 2014
Una vista integral de los choques rápidos alrededor de la supernova 1006
Sladjana Nikolić1, Glenn van de Ven, Kevin Heng
1Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany. nikolic@mpia.de
Resumen
Los restos de supernovas crean poderosas sacudidas que excitan las líneas de hidrógeno. Las observaciones revelan protones supratermales, que pueden ser la fuente de los rayos cósmicos de alta energía.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Física del plasma es la física del plasma.
Sus antecedentes:
- Los restos de supernovas actúan como pistones astrofísicos, expulsando gas a altas velocidades (~ 1000 km/s).
- Estas explosiones generan choques en el medio interestelar, excitando las líneas de emisión de hidrógeno.
Objetivo del estudio:
- Mapear espacial y espectralmente las estructuras de choque en el borde noroeste de la supernova 1006.
- Para investigar las condiciones físicas dentro de estos choques, en particular la presencia de partículas supratermales.
Principales métodos:
- Utilizó un espectrógrafo óptico de campo integral para el mapeo espectral espacial de alta resolución.
- Analizó la emisión de la línea Hα de dos componentes en 133 ubicaciones del cielo.
Principales resultados:
- Se detectaron variaciones en los anchos de línea Hα y las relaciones de intensidad en decenas de trayectorias libres de la media atómica.
- Evidencia observada de protones supratermales dentro de las regiones de choque.
Conclusiones:
- Las variaciones observadas sugieren la presencia de protones supratermales en los choques de los restos de supernovas.
- Estos protones supratermales son partículas semilla potenciales para la aceleración de los rayos cósmicos de alta energía.
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