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Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
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SYSNO ASEP 0499619 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory Author(s) Aab, A. (NL)
Abreu, A. (PT)
Aglietta, M. (IT)
Blažek, Jiří (FZU-D) ORCID, RID
Boháčová, Martina (FZU-D) RID, ORCID
Chudoba, Jiří (FZU-D) RID, ORCID
Ebr, Jan (FZU-D) RID, ORCID
Juryšek, Jakub (FZU-D) ORCID
Mandát, Dušan (FZU-D) RID, ORCID
Palatka, Miroslav (FZU-D) RID, ORCID, SAI
Pech, Miroslav (FZU-D) RID, ORCID
Prouza, Michael (FZU-D) RID, ORCID
Řídký, Jan (FZU-D) RID, ORCID
dos Santos, Eva M. Martins (FZU-D) ORCID
Schovánek, Petr (FZU-D) RID, ORCID
Trávníček, Petr (FZU-D) RID, ORCID
Vícha, Jakub (FZU-D) RID, ORCID
Yushkov, Alexey (FZU-D) ORCIDNumber of authors 394 Article number 026 Source Title Journal of Cosmology and Astroparticle Physics. - : Institute of Physics Publishing - ISSN 1475-7516
Roč. 2018, č. 10 (2018), s. 1-38Number of pages 38 s. Language eng - English Country GB - United Kingdom Keywords cosmic ray experiments ; cosmic rays detectors ; ultra high energy cosmic rays Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics R&D Projects LM2015038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LG15014 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001402 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 UT WOS 000448144100001 EID SCOPUS 85056142828 DOI 10.1088/1475-7516/2018/10/026 Annotation With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60 degrees and 84 degrees. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of several km(2) with radio signals detectable in the 30 to 80 MHz band. A comparison of the measured radio-signal amplitudes with Monte Carlo simulations of a subset of 50 events for which we reconstruct the energy using the Auger surface detector shows agreement within the uncertainties of the current analysis. As expected for forward-beamed radio emission undergoing no significant absorption or scattering in the atmosphere, the area illuminated by radio signals grows with the zenith angle of the air shower. Inclined air showers with EeV energies are thus measurable with sparse radio-antenna arrays with grid sizes of a km or more.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2019
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