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Changes in cosmic ray cut-off rigidities due to secular variations of the geomagnetic field

An analytical expression is derived for the cutoff rigidity of cosmic rays arriving at a point in an arbitrary direction, when the main geomagnetic field is approximated by that of an eccentric dipole. This expression is used to determine changes in geomagnetic cutoffs due to secular variation o...

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Autori principali: A. Bhattacharyya, B. Mitra
Natura: Artigo
Lingua:Inglês
Pubblicazione: Copernicus Publications 1997-06-01
Serie:Annales Geophysicae
Accesso online:https://www.ann-geophys.net/15/734/1997/angeo-15-734-1997.pdf
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