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Study on 2012 march 7 solar particle event and forbush decrease with the PAMELA experiment
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2013 (English)In: Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013, Sociedade Brasileira de Fisica , 2013Conference paper, Published paper (Refereed)
Abstract [en]

The PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astro-physics) space-borne experiment was launched on 15 June 2006 and has been continuously collecting data since then. The apparatus measures electrons, positrons, protons, anti-protons and heavier nuclei from about 100 MeV to several hundreds of GeV. The on-board instrumentation is built around a permanent magnet with a silicon microstrip tracker, providing charge and track detection information. During solar maximum conditions of solar cycle 24, PAMELA has been providing key information about solar energetic particles (SEPs) and their influence at Earth. We discuss here the recent 2012 March 7 SEP event with a brief comment on the subsequent Forbush decrease, registered by PAMELA. This event was also observed by Fermi/LAT exhibiting unprecedented time-extended γ-ray emission (> 100 MeV) lasting nearly 20 hours. We compare the derived accelerated ion population at the Sun with the ion population measured in space by PAMELA and discuss the implications for particle acceleration. 

Place, publisher, year, edition, pages
Sociedade Brasileira de Fisica , 2013.
Keywords [en]
Fermi, PAMELA, Protons, SEPs, Cosmology, Gamma rays, Permanent magnets, Solar energy, On-board instrumentation, Particle acceleration, Silicon microstrip trackers, Solar energetic particles, Solar particle events, Cosmic rays
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-237200Scopus ID: 2-s2.0-85052439842ISBN: 9788589064293 (print)OAI: oai:DiVA.org:kth-237200DiVA, id: diva2:1262944
Conference
33rd International Cosmic Rays Conference, ICRC 2013; Rio de Janeiro; Brazil; 2 July 2013 through 9 July 2013
Note

QC 20181113

Available from: 2018-11-13 Created: 2018-11-13 Last updated: 2018-11-13Bibliographically approved

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Carlson, Per

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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • de-DE
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  • Other locale
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Output format
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  • asciidoc
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