Precise spectra of electron and positron fluxes in energy range from 80 MeV to several GeV below the geomagnetic cutoff rigidity were obtained using data of the PAMELA spectrometer. It was launched on June 15th 2006 onboard the Resurs-DK satellite on an elliptical orbit (the inclination is 70°, the altitude is 350-610 km). The work presents measurements of secondary lepton fluxes produced in interactions of cosmic ray protons with the atmosphere in the near Earth space (out of the South Atlantic Anomaly). Latitudinal dependences are discussed. These results are particularly interesting for more accurate definition of electron/positron flux model in the Earth magnetosphere.
Sub-cutoff electrons and positrons in the near Earth space / Grishantseva, Liubov A.; Adriani, O.; Barbarino, G.; Bazilevskaya, G.A.; Bellotti, R.; Boezio, M.; Bogomolov, E.A.; Bonechi, L.; Bongi, M.; Bonvicini, V.; Borisov, S.V.; Bottai, S.; Bruno, A.; Cafagna, F.; Campana, D.; Carlson, P.; Casolino, M.; Castellini, G.; De Pascale, M.P.; Di Felice, V.; Galper, A.M.; Hofverberg, P.; Leonov, A.A.; Koldashov, S.V.; Krutkov, S.Yu.; Kvashnin, A.N.; Malakhov, V.V.; Malvezzi, V.; Marcelli, L.; Menn, W.; Mikhailov, V.V.; Mocchiutti, E.; Osteria, G.; Papini, P.; Pearce, M.; Picozza, P.; Ricci, M.; Ricciarini, S.; Simon, M.; De Simone, N.; Sparvoli, R.; Spillantini, P.; Stozhkov, Yu.I.; Vacchi, A.; Vannuccini, E.; Vasiliev, G.V.; Voronov, S.A.; Yurkin, Yu.T.; Zampa, G.; Zampa, N.; Zverev, V.G.. - ELETTRONICO. - (2009), pp. 1-4. ( 31st International Cosmic Ray Conference, ICRC 2009 Lodz, pol 2009).
Sub-cutoff electrons and positrons in the near Earth space
ADRIANI, OSCAR;BONGI, MASSIMO;
2009
Abstract
Precise spectra of electron and positron fluxes in energy range from 80 MeV to several GeV below the geomagnetic cutoff rigidity were obtained using data of the PAMELA spectrometer. It was launched on June 15th 2006 onboard the Resurs-DK satellite on an elliptical orbit (the inclination is 70°, the altitude is 350-610 km). The work presents measurements of secondary lepton fluxes produced in interactions of cosmic ray protons with the atmosphere in the near Earth space (out of the South Atlantic Anomaly). Latitudinal dependences are discussed. These results are particularly interesting for more accurate definition of electron/positron flux model in the Earth magnetosphere.
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