Recent results from cosmic-ray measurements with LOFAR

Schellart P, Buitink S, Corstanje A, Enriquez JE, Falcke H, Frieswijk W, Hörandel JR, Krause M, Nelles A, Scholten O, Ter Veen S, Thoudam S, Van Den Akker M (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Elsevier

Book Volume: 742

Pages Range: 115-118

DOI: 10.1016/j.nima.2013.11.086

Abstract

LOFAR, the Low Frequency Array, is currently the world's largest distributed radio telescope observing at frequencies below 240 MHz. LOFAR is measuring cosmic-ray induced air-showers since June 2011 and has collected several hundreds of events with hundreds of antennas per individual event. We present measurements of the radio signal strength as well as high-precision measurements of wavefront curvature and polarization. These will enable us to disentangle the different emission mechanisms at play, such as geomagnetic radiation, charge excess, and Askaryan or Cherenkov effects, leading to a full understanding of the air-shower radio emission. Furthermore we give a first example on how the full complexity of the signal enables radio measurements to be used to study primary particle composition. © 2013 Elsevier B.V. All rights reserved.

Authors with CRIS profile

Anna Nelles

Involved external institutions

Radboud University Nijmegen NL Netherlands (NL) Astron NL Netherlands (NL) University of Groningen / Rijksuniversiteit Groningen NL Netherlands (NL)

How to cite

APA:

Schellart, P., Buitink, S., Corstanje, A., Enriquez, J.E., Falcke, H., Frieswijk, W.,... Van Den Akker, M. (2014). Recent results from cosmic-ray measurements with LOFAR. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 742, 115-118. https://doi.org/10.1016/j.nima.2013.11.086

MLA:

Schellart, P., et al. "Recent results from cosmic-ray measurements with LOFAR." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 742 (2014): 115-118.

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