TY - JOUR
T1 - Results of a self-triggered prototype system for radio-detection of extensive air showers at the Pierre Auger Observatory
AU - The Pierre Auger Collaboration
AU - Acounis, S.
AU - Charrier, D.
AU - Garçon, T.
AU - Rivière, C.
AU - Stassi, P.
AU - Abreu, P.
AU - Aglietta, M.
AU - Ahlers, M.
AU - Ahn, E. J.
AU - Albuquerque, I. F.M.
AU - Allekotte, I.
AU - Allen, J.
AU - Allison, P.
AU - Almela, A.
AU - Alvarezcastillo, J.
AU - Alvarez-Muñiz, J.
AU - Alves Batista, R.
AU - Ambrosio, M.
AU - Aminaei, A.
AU - Anchordoqui, L.
AU - Andringa, S.
AU - Antǐci'c, T.
AU - Aramo, C.
AU - Arqueros, F.
AU - Asorey, H.
AU - Assis, P.
AU - Aublin, J.
AU - Ave, M.
AU - Avenier, M.
AU - Avila, G.
AU - Badescu, A. M.
AU - Barber, K. B.
AU - Barbosa, A. F.
AU - Bardenet, R.
AU - Baughman, B.
AU - Bäuml, C. J.
AU - Baus, C.
AU - Beatty, J. J.
AU - Becker, K. H.
AU - Belĺetoile, A.
AU - Bellido, J. A.
AU - Benzvi, S.
AU - Berat, C.
AU - Bertou, X.
AU - Biermann, P. L.
AU - Billoir, P.
AU - Blanco, F.
AU - Blanco, M.
AU - Bleve, C.
AU - Pelayo, R.
N1 - Publisher Copyright:
© 2012 IOP Publishing Ltd and Sissa Medialab srl.
PY - 2012/11/1
Y1 - 2012/11/1
N2 - We describe the experimental setup and the results of RAuger, a small radio-antenna array, consisting of three fully autonomous and self-triggered radio-detection stations, installed close to the center of the Surface Detector (SD) of the Pierre Auger Observatory in Argentina. The setup has been designed for the detection of the electric field strength of air showers initiated by ultra-high energy cosmic rays, without using an auxiliary trigger from another detection system. Installed in December 2006, RAuger was terminated in May 2010 after 65 registered coincidences with the SD. The sky map in local angular coordinates (i.e., zenith and azimuth angles) of these events reveals a strong azimuthal asymmetry which is in agreement with a mechanism dominated by a geomagnetic emission process. The correlation between the electric field and the energy of the primary cosmic ray is presented for the first time, in an energy range covering two orders of magnitude between 0.1 EeV and 10 EeV. It is demonstrated that this setup is relatively more sensitive to inclined showers, with respect to the SD. In addition to these results, which underline the potential of the radio-detection technique, important information about the general behavior of self-triggering radio-detection systems has been obtained. In particular, we will discuss radio self-triggering under varying local electric-field conditions.
AB - We describe the experimental setup and the results of RAuger, a small radio-antenna array, consisting of three fully autonomous and self-triggered radio-detection stations, installed close to the center of the Surface Detector (SD) of the Pierre Auger Observatory in Argentina. The setup has been designed for the detection of the electric field strength of air showers initiated by ultra-high energy cosmic rays, without using an auxiliary trigger from another detection system. Installed in December 2006, RAuger was terminated in May 2010 after 65 registered coincidences with the SD. The sky map in local angular coordinates (i.e., zenith and azimuth angles) of these events reveals a strong azimuthal asymmetry which is in agreement with a mechanism dominated by a geomagnetic emission process. The correlation between the electric field and the energy of the primary cosmic ray is presented for the first time, in an energy range covering two orders of magnitude between 0.1 EeV and 10 EeV. It is demonstrated that this setup is relatively more sensitive to inclined showers, with respect to the SD. In addition to these results, which underline the potential of the radio-detection technique, important information about the general behavior of self-triggering radio-detection systems has been obtained. In particular, we will discuss radio self-triggering under varying local electric-field conditions.
KW - Antennas
KW - Large detector systems for particle and astroparticle physics
UR - http://www.scopus.com/inward/record.url?scp=84870277934&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/7/11/P11023
DO - 10.1088/1748-0221/7/11/P11023
M3 - Artículo
SN - 1748-0221
VL - 7
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 11
M1 - P11023
ER -