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PAMELA Measurements...
PAMELA Measurements of Cosmic-Ray Proton and Helium Spectra
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Adriani, O. (author)
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Barbarino, G. C. (author)
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Bazilevskaya, G. A. (author)
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show more...
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Bellotti, R. (author)
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Boezio, M. (author)
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Bogomolov, E. A. (author)
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Bonechi, L. (author)
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Bongi, M. (author)
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Bonvicini, V. (author)
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Borisov, S. (author)
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Bottai, S. (author)
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Bruno, A. (author)
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Cafagna, F. (author)
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Campana, D. (author)
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Carbone, R. (author)
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- Carlson, Per (author)
- KTH,Partikel- och astropartikelfysik
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Casolino, M. (author)
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Castellini, G. (author)
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Consiglio, L. (author)
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De Pascale, M. P. (author)
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De Santis, C. (author)
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De Simone, N. (author)
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Di Felice, V. (author)
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Galper, A. M. (author)
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- Gillard, William (author)
- KTH,Partikel- och astropartikelfysik
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Grishantseva, L. (author)
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Jerse, G. (author)
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Karelin, A. V. (author)
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Koldashov, S. V. (author)
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Krutkov, S. Y. (author)
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Kvashnin, A. N. (author)
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Leonov, A. (author)
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Malakhov, V. (author)
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Malvezzi, V. (author)
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Marcelli, L. (author)
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Mayorov, A. G. (author)
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Menn, W. (author)
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Mikhailov, V. V. (author)
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Mocchiutti, E. (author)
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Monaco, A. (author)
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Mori, N. (author)
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Nikonov, N. (author)
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Osteria, G. (author)
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Palma, F. (author)
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Papini, P. (author)
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- Pearce, Mark (author)
- KTH,Partikel- och astropartikelfysik
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Picozza, P. (author)
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Pizzolotto, C. (author)
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Ricci, M. (author)
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Ricciarini, S. B. (author)
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- Rossetto, Laura (author)
- KTH,Partikel- och astropartikelfysik
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Sarkar, R. (author)
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Simon, M. (author)
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Sparvoli, R. (author)
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Spillantini, P. (author)
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Stozhkov, Y. I. (author)
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Vacchi, A. (author)
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Vannuccini, E. (author)
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Vasilyev, G. (author)
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Voronov, S. A. (author)
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Yurkin, Y. T. (author)
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- Wu, Juan (author)
- KTH,Partikel- och astropartikelfysik
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Zampa, G. (author)
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Zampa, N. (author)
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Zverev, V. G. (author)
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2011
- 2011
- English.
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In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 332:6025, s. 69-72
- Related links:
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https://art.torverga...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Protons and helium nuclei are the most abundant components of the cosmic radiation. Precise measurements of their fluxes are needed to understand the acceleration and subsequent propagation of cosmic rays in our Galaxy. We report precision measurements of the proton and helium spectra in the rigidity range 1 gigavolt to 1.2 teravolts performed by the satellite-borne experiment PAMELA (payload for antimatter matter exploration and light-nuclei astrophysics). We find that the spectral shapes of these two species are different and cannot be described well by a single power law. These data challenge the current paradigm of cosmic-ray acceleration in supernova remnants followed by diffusive propagation in the Galaxy. More complex processes of acceleration and propagation of cosmic rays are required to explain the spectral structures observed in our data.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- SOLAR MODULATION
- ACCELERATION
- PROPAGATION
- GALAXY
- MATTER
- WAVES
- BESS
- Astronomy and astrophysics
- Astronomi och astrofysik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
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Science
(Search for host publication in LIBRIS)
To the university's database
- By the author/editor
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Adriani, O.
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Barbarino, G. C.
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Bazilevskaya, G. ...
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Bellotti, R.
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Boezio, M.
-
Bogomolov, E. A.
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show more...
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Bonechi, L.
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Bongi, M.
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Bonvicini, V.
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Borisov, S.
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Bottai, S.
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Bruno, A.
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Cafagna, F.
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Campana, D.
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Carbone, R.
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Carlson, Per
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Casolino, M.
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Castellini, G.
-
Consiglio, L.
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De Pascale, M. P ...
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De Santis, C.
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De Simone, N.
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Di Felice, V.
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Galper, A. M.
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Gillard, William
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Grishantseva, L.
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Jerse, G.
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Karelin, A. V.
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Koldashov, S. V.
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Krutkov, S. Y.
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Kvashnin, A. N.
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Leonov, A.
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Malakhov, V.
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Malvezzi, V.
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Marcelli, L.
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Mayorov, A. G.
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Menn, W.
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Mikhailov, V. V.
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Mocchiutti, E.
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Monaco, A.
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Mori, N.
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Nikonov, N.
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Osteria, G.
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Palma, F.
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Papini, P.
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Pearce, Mark
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Picozza, P.
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Pizzolotto, C.
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Ricci, M.
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Ricciarini, S. B ...
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Rossetto, Laura
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Sarkar, R.
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Simon, M.
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Sparvoli, R.
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Spillantini, P.
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Stozhkov, Y. I.
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Vacchi, A.
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Vannuccini, E.
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Vasilyev, G.
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Voronov, S. A.
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Yurkin, Y. T.
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Wu, Juan
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Zampa, G.
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Zampa, N.
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Zverev, V. G.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Science
- By the university
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Royal Institute of Technology