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Cosmic ray and geomagnetic disturbances from July 1957 to July 1958

Part III. - The correlation with solar radio bursts

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Il Nuovo Cimento (1955-1965)

Summary

A statistical approach is discussed to the comparison of the time correlation of solar radio bursts of spectral types II and IV with the geomagnetic and cosmic ray storms. The analysis is carried out for the events of the period July 1957–July 1958. The solar radio bursts best correlated to the geophysical perturbations under study turn out to be type IV radio events, although the correlation is far from being of the « one to one » character. The comparison with other authors’ results makes it clear that a better definition of type IV emission is fundamental in this respect.

Riassunto

Si riporta un’analisi statistica della correlazione temporale fra i « bursts » di radioemissione solare meglio associati ai brillamenti e le tempeste geomagnetiche e di raggi cosmici nel periodo luglio 1957–luglio 1958. Nel corso di tutta l’analisi si fa il confronto fra i « bursts » di tipo spettrale II e IV. Gli eventi radiosolari meglio correlati con gli eventi geofisici studiati risultano i tipi IV, ma anche in questo caso la correlazione è ben lontana da una corrispondenza biunivoca. Il confronto coi risultati ottenuti da altri autori mette in evidenza che una più approfondita indagine e una migliore definizione della radioemissione di tipo IV sarebbe essenziale per ottenere conclusioni definitive a questo riguardo.

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Bachelet, F., Balata, P., Conforto, A.M. et al. Cosmic ray and geomagnetic disturbances from July 1957 to July 1958. Nuovo Cim 21, 648–658 (1961). https://doi.org/10.1007/BF02828799

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  • DOI: https://doi.org/10.1007/BF02828799

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