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PAMELA's measurements of geomagnetic cutoff variations during solar energetic particle events

Bruno, A. (author)
Adriani, O. (author)
Barbarino, G. C. (author)
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Bazilevskaya, G. A. (author)
Bellotti, R. (author)
Boezio, M. (author)
Bogomolov, E. A. (author)
Bongi, M. (author)
Bonvicini, V. (author)
Bottai, S. (author)
Cafagna, F. (author)
Campana, D. (author)
Carbone, R. (author)
Carlson, Per (author)
KTH,Fysik
Casolino, M. (author)
Castellini, G. (author)
De Donato, C. (author)
De Santis, C. (author)
De Simone, N. (author)
Di Felice, V. (author)
Formato, V. (author)
Galper, A. M. (author)
Karelin, A. V. (author)
Koldashov, S. V. (author)
Koldobskiy, S. (author)
Krutkov, S. Y. (author)
Kvashnin, A. N. (author)
Leonov, A. (author)
Malakhov, V. (author)
Marcelli, L. (author)
Martucci, M. (author)
Mayorov, A. G. (author)
Menn, W. (author)
Mergè, M. (author)
Mikhailov, V. V. (author)
Mocchiutti, E. (author)
Monaco, A. (author)
Mori, N. (author)
Munini, R. (author)
Osteria, G. (author)
Palma, F. (author)
Panico, B. (author)
Papini, P. (author)
Pearce, Mark (author)
KTH,Partikel- och astropartikelfysik
Picozza, P. (author)
Ricci, M. (author)
Ricciarini, S. B. (author)
Sarkar, R. (author)
Scotti, V. (author)
Simon, M. (author)
Sparvoli, R. (author)
Spillantini, P. (author)
Stozhkov, Y. I. (author)
Vacchi, A. (author)
Vannuccini, E. (author)
Vasilyev, G. I. (author)
Voronov, S. A. (author)
Yurkin, Y. T. (author)
Zampa, G. (author)
Zampa, N. (author)
Zverev, V. G. (author)
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 (creator_code:org_t)
Proceedings of Science (PoS), 2015
2015
English.
In: Proceedings of Science. - : Proceedings of Science (PoS).
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • Data from the PAMELA satellite experiment were used to measure the geomagnetic cutoff for high-energy ( 80 MeV) protons during the solar particle events on 2006 December 13 and 14. The variations of the cutoff latitude as a function of rigidity were studied on relatively short timescales, corresponding to single spacecraft orbits (about 94 minutes). Estimated cutoff values were cross-checked with those obtained by means of a trajectory tracing approach based on dynamical empirical modeling of the Earth's magnetosphere. We find significant variations in the cutoff latitude, with a maximum suppression of about 6 deg for 80 MeV protons during the main phase of the storm. The observed reduction in the geomagnetic shielding and its temporal evolution were compared with the changes in the magnetosphere configuration, investigating the role of IMF, solar wind and geomagnetic (Kp, Dst and Sym-H indexes) variables and their correlation with PAMELA cutoff results.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Publication and Content Type

ref (subject category)
kon (subject category)

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