Geomagnetic effects on cosmic ray propagation for different conditions

The geomagnetic field (B geo) sets a lower cutoff rigidity (R c) to the entry of cosmic particles to Earth which depends on the geomagnetic activity. From numerical simulations of the trajectory of a proton (performed with the MAGCOS code) in the B geo, we use backtracking to analyze particles arriv...

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Autores principales: Masías-Meza, J.J., Bertou, X., Dass, S.
Formato: SER
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p234_MasiasMeza
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Sumario:The geomagnetic field (B geo) sets a lower cutoff rigidity (R c) to the entry of cosmic particles to Earth which depends on the geomagnetic activity. From numerical simulations of the trajectory of a proton (performed with the MAGCOS code) in the B geo, we use backtracking to analyze particles arriving at the Auger Observatory location. We determine the asymptotic trajectories and the values of R c in different incidence directions. Simulations were done using several models of B geo that emulate different geomagnetic conditions. © 2012 International Astronomical Union.