Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

(Pierre Auger Collaboration)

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.

Original languageEnglish (US)
Article number241101
JournalPhysical Review Letters
Volume116
Issue number24
DOIs
StatePublished - Jun 14 2016

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radio signals
cosmic ray showers
estimators
cosmic rays
radiation
energy
observatories
geomagnetism
radio emission
cascades
frequency ranges
electromagnetism
scaling
detectors
predictions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{0a5c18771b4344a2b60be1d886e6c259,
title = "Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy",
abstract = "We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.",
author = "{(Pierre Auger Collaboration)} and A. Aab and P. Abreu and M. Aglietta and Ahn, {E. J.} and {Al Samarai}, I. and Albuquerque, {I. F.M.} and I. Allekotte and P. Allison and A. Almela and {Alvarez Castillo}, J. and J. Alvarez-Mu{\~n}iz and {Alves Batista}, R. and M. Ambrosio and A. Aminaei and Anastasi, {G. A.} and L. Anchordoqui and S. Andringa and C. Aramo and F. Arqueros and N. Arsene and H. Asorey and P. Assis and J. Aublin and G. Avila and N. Awal and Badescu, {A. M.} and C. Baus and Beatty, {J. J.} and Becker, {K. H.} and Bellido, {J. A.} and C. Berat and Bertaina, {M. E.} and X. Bertou and Biermann, {P. L.} and P. Billoir and Blaess, {S. G.} and A. Blanco and M. Blanco and J. Blazek and C. Bleve and H. Bl{\"u}mer and M. Boh{\'a}čov{\'a} and D. Boncioli and C. Bonifazi and N. Borodai and J. Brack and I. Brancus and T. Bretz and Stephane Coutu and Mostafa, {Miguel Alejandro}",
year = "2016",
month = "6",
day = "14",
doi = "10.1103/PhysRevLett.116.241101",
language = "English (US)",
volume = "116",
journal = "Physical Review Letters",
issn = "0031-9007",
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Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy. / (Pierre Auger Collaboration).

In: Physical Review Letters, Vol. 116, No. 24, 241101, 14.06.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

AU - (Pierre Auger Collaboration)

AU - Aab, A.

AU - Abreu, P.

AU - Aglietta, M.

AU - Ahn, E. J.

AU - Al Samarai, I.

AU - Albuquerque, I. F.M.

AU - Allekotte, I.

AU - Allison, P.

AU - Almela, A.

AU - Alvarez Castillo, J.

AU - Alvarez-Muñiz, J.

AU - Alves Batista, R.

AU - Ambrosio, M.

AU - Aminaei, A.

AU - Anastasi, G. A.

AU - Anchordoqui, L.

AU - Andringa, S.

AU - Aramo, C.

AU - Arqueros, F.

AU - Arsene, N.

AU - Asorey, H.

AU - Assis, P.

AU - Aublin, J.

AU - Avila, G.

AU - Awal, N.

AU - Badescu, A. M.

AU - Baus, C.

AU - Beatty, J. J.

AU - Becker, K. H.

AU - Bellido, J. A.

AU - Berat, C.

AU - Bertaina, M. E.

AU - Bertou, X.

AU - Biermann, P. L.

AU - Billoir, P.

AU - Blaess, S. G.

AU - Blanco, A.

AU - Blanco, M.

AU - Blazek, J.

AU - Bleve, C.

AU - Blümer, H.

AU - Boháčová, M.

AU - Boncioli, D.

AU - Bonifazi, C.

AU - Borodai, N.

AU - Brack, J.

AU - Brancus, I.

AU - Bretz, T.

AU - Coutu, Stephane

AU - Mostafa, Miguel Alejandro

PY - 2016/6/14

Y1 - 2016/6/14

N2 - We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.

AB - We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.

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U2 - 10.1103/PhysRevLett.116.241101

DO - 10.1103/PhysRevLett.116.241101

M3 - Article

VL - 116

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 24

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