Results from Tunka-133 (5 years observation) and from the Tunka-HiSCORE prototype

Abstract

Abstract. Data obtained with two detectors located at the Tunka Cosmic Ray facility are presented. The Cherenkov light array for registration of extensive air showers (EAS) Tunka-133 collected data during 5 winter seasons since 2009 to 2014. The differential energy spectrum of all particles and the dependence of the average maximum depth on the energy in the range of 6 · 10 15 −10 18 eV measured for 1540 hours of observation are presented.The preliminary all particle energy spectrum by the data of TunkaHiSCORE prototype array, installed in 2013, is presented. Some additional experiments in the Tunka Valley are briefly described.

Tunka Advanced Instrument for cosmic rays and Gamma Astronomy

“…4). Since Tunka-133 is operating in the same energy range as KASCADE-Grande [19], it provides a cross-check of the position of second knee using a model-independent reconstruction with air-Cherenkov techniques [20]. By using the Tunka-Rex and LOPES radio extensions of Tunka-133 and KASCADE-Grande, respectively, it was shown that both detectors feature a consistent energy scale [21], what confirmed the determination of the spectral shape in this energy region.…”

Cosmic ray spectrum and composition from PeV to EeV using 3 years of data from IceTop and IceCube

“…Comparison of the all-particle and composition spectra of the four elemental groups H, He, O, and Fe from this analysis using Sibyll 2.1 (black) with other experiments. The dataset for the all-particle spectra is taken from Tibet [42], Tunka [43], Yakutsk [44], Tale [45], Hires [46], and Telescope Array [47]. The Kascade [48] results are using a five component fit of H, He, CNO, MgSi, and Fe groups using Sibyll 2.1.…”

Mass composition of cosmic rays above 0.1 EeV by the Yakutsk array data

“…8. The results are compared with data of Tunka [46], LOFAR [47], TA [52] and Auger [42], derived using the hadronic interaction model QGSJetII-04. There is also the Yakutsk array data for 1994-2010 [53]].…”

“…8: Average atomic mass lnA derived from the average depth of the shower maximum with QGSJetII-04 [11]. Comparison with Yakutsk (1994-2010) [53], Tunka [46], LOFAR [47], TA [52] and Auger [42] data.…”