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Pamela observation of the 2012 may 17 gle event
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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 Astrophysics) satellite-borne experiment has been collecting data in orbit since July 2006, providing accurate measurements of the energy spectra and composition of the cosmic radiation from a few hundred MeV/n up to hundred GeV/n. This wide interval of measured energies makes PAMELA a unique instrument for Solar Energetic Particle (SEP) observations. Not only does it span the energy range between the ground-based neutron monitor data and the observations of SEPs from space, but also PAMELA carries out the first direct measurements of the composition for the highest energy SEP events, including those causing Ground Level Enhancements (GLEs). PAMELA has registered many SEP events in solar cycle 24 including the 2012 May 17 GLE event (GLE 71), offering unique opportunities to address the question of high-energy SEP origin. Experimental performances and preliminary results on the 2012 May 17 events will be presented. We will discuss the derived particle injection time and compare with other time scales at the Sun including the flare and CME onset times. 

Place, publisher, year, edition, pages
Sociedade Brasileira de Fisica , 2013.
Keywords [en]
GLE, PAMELA, SEP, Cosmic rays, Orbits, Solar energy, Accurate measurement, Direct measurement, Ground level enhancements, Neutron monitors, Particle injection, Satellite-borne experiment, Solar energetic particles, Cosmology
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-237204Scopus ID: 2-s2.0-85052333275ISBN: 9788589064293 (print)OAI: oai:DiVA.org:kth-237204DiVA, id: diva2:1260918
Conference
33rd International Cosmic Rays Conference, ICRC 2013; Rio de Janeiro; Brazil; 2 July 2013 through 9 July 2013
Note

QC 20181105

Available from: 2018-11-05 Created: 2018-11-05 Last updated: 2018-11-05Bibliographically approved

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Carlson, PerPearce, Mark

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