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The mass composition of cosmic rays measured with LOFAR
Radboud Univ Nijmegen, Netherlands ; NIKHEF, Netherlands.
Radboud Univ Nijmegen, Netherlands.
Radboud Univ Nijmegen, Netherlands ; Vrije Univ Brussel, Belgium.
Radboud Univ Nijmegen, Netherlands.
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2017 (English)In: RICAP16, 6TH ROMA INTERNATIONAL CONFERENCE ON ASTROPARTICLE PHYSICS / [ed] Morselli, A Capone, A Fernandez, GR, 2017, UNSP 02001Conference paper, Published paper (Refereed)
Abstract [en]

High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation. This emission is detected with the LOFAR radio telescope in the frequency range from 30 to 240 MHz. The data are used to determine the properties of the incoming cosmic rays. The radio technique is now routinely used to measure the arrival direction, the energy, and the particle type (atomic mass) of cosmic rays in the energy range from 10(17) to 10(18) eV. This energy region is of particular astrophysical interest, since in this regime a transition from a Galactic to an extra-galactic origin of cosmic rays is expected. For illustration, the LOFAR results are used to set constraints on models to describe the origin of high-energy cosmic rays.

Place, publisher, year, edition, pages
2017. UNSP 02001
Series
EPJ Web of Conferences, ISSN 2100-014X ; 136
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-67509DOI: 10.1051/epjconf/201713602001ISI: 000405958300012OAI: oai:DiVA.org:lnu-67509DiVA: diva2:1137102
Conference
6th Roma International Conference on Astroparticle Physics (RICAP), JUN 21-24, 2016, Rome, ITALY
Available from: 2017-08-30 Created: 2017-08-30 Last updated: 2017-08-30Bibliographically approved

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Thoudam, Satyendra
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Department of Physics and Electrical Engineering
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CiteExportLink to record
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Citation style
  • apa
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