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The 27-day variation in cosmic ray intensity

Journal Article · · Nuovo Cimento
DOI:https://doi.org/10.1007/BF02962537· OSTI ID:4257457
The study of electromagnetic phenomena like magnetic storms. aurorae, and certain types of cosmic-ray effects like the 27-day variation in intensity is of impontance for the proper understanding of the interplanetary electromagnetic state. Since solar activity appears to influence the electromagnetic conditions in interplanetary space. changes in solar activity during its eleven-year cycle would be revealed in the above effects. The relation between the transient behavior of the geomagnetic field and cosmic-ray intensity appears to be definitely established. Graphical data indicate that the amplitude of the 27-day variation in cosmic-ray intensity is more closely connected with geomagnetic activity than with solar activity. (A.C.)
Research Organization:
Royal Inst. of Tech., Stockholm
Sponsoring Organization:
USDOE
NSA Number:
NSA-13-007987
OSTI ID:
4257457
Journal Information:
Nuovo Cimento, Journal Name: Nuovo Cimento Journal Issue: S2 Vol. 8; ISSN 0029-6341
Country of Publication:
Country unknown/Code not available
Language:
English

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