Tunka-25 Air Shower Cherenkov array: The main results

We present the main results of the Extensive Air Shower Cherenkov array Tunka-25. They cover the energy spectrum from 8·1014 to 1017eV and mass composition of primary cosmic rays in the energy range of 3·1015−3·1016eV. A new lateral distribution function (LDF) of Air Shower Cherenkov light and a new...

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Bibliographic Details
Published in:Astroparticle physics 2013-12, Vol.50-52, p.18-25
Main Authors: Budnev, N., Chernov, D., Gress, O., Korosteleva, E., Kuzmichev, L., Lubsandorzhiev, B., Navarra, G., Pankov, L., Prosin, V., Semeney, Yu, Spiering, C., Wischnewski, R., Yashin, I.
Format: Article
Language:English
Subjects:
Air shower
Cherenkov radiation
Energy spectrum
High energy cosmic rays
Mass composition
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Summary:We present the main results of the Extensive Air Shower Cherenkov array Tunka-25. They cover the energy spectrum from 8·1014 to 1017eV and mass composition of primary cosmic rays in the energy range of 3·1015−3·1016eV. A new lateral distribution function (LDF) of Air Shower Cherenkov light and a new method to analyze the maximum depth distribution of the shower have been developed. Both have been successfully applied in the data analysis of Tunka-25. We also discuss methods of time and amplitude calibration of the array, providing an accurate determination of the primary energy and the steepness of the LDF.
ISSN:0927-6505
1873-2852
DOI:10.1016/j.astropartphys.2013.09.006