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Enhanced low-energy gamma rays at balloon altitude in the Brazilian magnetic anomaly

Abstract

THE region of the Brazilian geomagnetic anomaly presents an interesting opportunity for the study of precipitation of charged particles of the inner radiation belt into the atmosphere below. Some recent studies based on direct and indirect observations (refs 1–3 and our unpublished work) show that the precipitating flux increases appreciably during the period of a geomagnetic storm. The present note provides another evidence in this direction.

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References

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MARTIN, I., RAI, D., PALMEIRA, R. et al. Enhanced low-energy gamma rays at balloon altitude in the Brazilian magnetic anomaly. Nature 252, 25–27 (1974). https://doi.org/10.1038/252025a0

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