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06:28
Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Descubrimiento de intensos destellos de rayos gamma de origen atmosférico
Science (New York, N.Y.)
|May 27, 1994
Resumen
Los detectores observaron inexplicables destellos de rayos gamma originados por encima de 30 km en la atmósfera de la Tierra. Estas ráfagas intensas probablemente son el resultado de la emisión de bremsstrahlung causada por electrones de alta energía de descargas eléctricas raras.
Área de la Ciencia:
- Física de la atmósfera física de la atmósfera.
- Astrofísica de altas energías de alta energía.
- Los destellos de rayos gamma terrestres también brillan.
Sus antecedentes:
- Los detectores del Observatorio de Rayos Gamma de Compton han registrado inexplicables destellos de rayos gamma terrestres.
- Estos eventos se originan a altitudes superiores a 30 km para escapar de la absorción atmosférica.
Objetivo del estudio:
- Para investigar la naturaleza y el origen de los destellos de rayos gamma observados a gran altitud.
Principales métodos:
- Análisis de los espectros de fotones de los eventos de rayos gamma detectados.
- Correlación de las características del evento con los fenómenos atmosféricos.
Principales resultados:
- Los destellos de rayos gamma observados exhiben espectros de fotones duros, indicativos de la emisión de bremsstrahlung.
- Los espectros son consistentes con los electrones de millones de electrones-voltios que se originan en grandes altitudes.
Conclusiones:
- La fuente más probable de estos electrones energéticos es una descarga eléctrica rara y de gran altitud por encima de las tormentas eléctricas.
- Se necesita más investigación para confirmar el origen especulativo de estos eventos.
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