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The Tunka Radio Extension: reconstruction of energy and shower maximum of the first year dataстатья
- Авторы: Dmitriy Kostunin, Bezyazeekov P.A., Budnev N.M., Gress O.A., Haungs A., Hiller R., Huege T., Kleifges M., Konstantinov E.N., Korosteleva E.E., Krömer O., Kuzmichev L.A., Lubsandorzhiev N., Mirgazov R.R., Monkhoev R., Pakhorukov A., Pankov L., Prosin V.V., Rubtsov G.I., Schröder F G., Wischnewski R., Zagorodnikov A.
- Сборник: Proceedings, 34th International Cosmic Ray Conference (ICRC 2015) : The Hague, The Netherlands, July 30-August 6, 2015
- Серия: PoS ICRC2015
- Год издания: 2016
- Первая страница: 285
- Аннотация: Since its commissioning in autumn 2012, Tunka-Rex, the radio extension of the air-Cherenkov detector Tunka-133, performed three years of air shower measurements. Currently the detector consists of 44 antennas connected to air-Cherenkov and scintillator detectors, respectively, placed in the Tunka valley, Siberia. Triggered by these detectors, Tunka-Rex measures the radio signal up to EeV-scale air-showers. This configuration provides a unique possibility for cross-calibration between air-Cherenkov, radio and particle techniques. We present reconstruction methods for the energy and the shower maximum developed with CoREAS simulations, which allow for a precision competitive with the air-Cherenkov technique. We apply these methods to data acquired by Tunka-Rex in the first year which we use for cross-calibration, and we compare the results with the reconstruction of the energy and the shower maximum by Tunka-133, which provides also a reconstruction for the shower core used for the radio reconstruction. Our methods have shown that the atmospheric depth of the shower maximum (Xmax) can be reconstructed with a precision of better than 40 g/cm2 for high quality events, in some cases even when only three antenna stations have signal. The energy precision is comparable with the air-Cherenkov precision of 15%. Soon the results will be checked with the independent data of the second year.
- Добавил в систему: Попова Елена Григорьевна