The Tunka Radio Extension (Tunka-Rex): Status and First Results (ICRC 2013)

F. G. Schröder; N. M. Budnev; O. A. Gress; A. Haungs; R. Hiller; T. Huege; Y. Kazarina; M. Kleifges; A. Konstantinov; E. N. Konstantinov; E. E. Korosteleva; D. Kostunin; O. Krömer; L. A. Kuzmichev; R. R. Mirgazov; L. Pankov; V. V. Prosin; G. I. Rubtsov; C. Rühle; E. Svetnitsky; R. Wischnewski; A. Zagorodnikov

arXiv · 1308.0910

The Tunka Radio Extension (Tunka-Rex): Status and First Results (ICRC 2013)

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Abstract

Tunka-Rex is a new radio antenna array which extends the Tunka experiment in Siberia close to lake Baikal. It consists of 20 antennas on an area of 1 km^2 which measure the radio emission of high-energy air showers. Tunka-Rex is triggered by the photomultiplier array of Tunka measuring air-Cherenkov light of air showers in the energy range from about 10 PeV to 1 EeV. This configuration allows for the worldwide first hybrid measurements of the radio and air-Cherenkov signal for the same events: an ideal situation to perform a cross-calibration between both methods. Consequently, the main goal of Tunka-Rex is to determine the achievable energy and Xmax precision of radio measurements by comparing them to the reconstruction of the air-Cherenkov measurements. Tunka-Rex started operation in autumn 2012, and already detected air-shower events. In this paper we present the status of Tunka-Rex and first results which indicate that Tunka-Rex measures indeed the radio emission by air showers and that is is sensitive to their energy.

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F. G. Schröder, N. M. Budnev, O. A. Gress, A. Haungs, R. Hiller, T. Huege, Y. Kazarina, M. Kleifges, A. Konstantinov, E. N. Konstantinov, E. E. Korosteleva, D. Kostunin, O. Krömer, L. A. Kuzmichev, R. R. Mirgazov, L. Pankov, V. V. Prosin, G. I. Rubtsov, C. Rühle, E. Svetnitsky, R. Wischnewski, A. Zagorodnikov. 2013-08-05. The Tunka Radio Extension (Tunka-Rex): Status and First Results (ICRC 2013). https://arxiv.org/abs/1308.0910

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