Measurement of the all-particle cosmic ray energy spectrum with IceTop

F. Kislat<sup>1</sup> for the IceCube collaboration<sup>2</sup>,

doi:doi:10.5194/astra-7-175-2011

Astrophys. Space Sci. Trans., 7, 175-178, 2011
www.astrophys-space-sci-trans.net/7/175/2011/
doi:10.5194/astra-7-175-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.

Volume 7, issue 2

19 May 2011

Measurement of the all-particle cosmic ray energy spectrum with IceTop
F. Kislat¹ for the IceCube collaboration²
¹DESY, Platanenallee 6, 15738 Zeuthen, Germany
²http://www.icecube.wisc.edu

Received: 02 Nov 2010 – Accepted: 19 Jan 2011 – Published: 19 May 2011

Abstract. IceTop is an air shower array at the geographic South Pole forming the surface component of the IceCube Neutrino Observatory. In this paper, a method to reconstruct shower size and primary energy spectrum from data measured by IceTop is described. Data were divided into three zenith angle bins. Using Monte Carlo based on the SIBYLL and Fluka hadronic interaction models, agreement with an isotropic flux can only be achieved under the assumption of a mixed composition. A preliminary all-particle energy spectrum is presented.

Citation: F. Kislat¹ for the IceCube collaboration²: Measurement of the all-particle cosmic ray energy spectrum with IceTop, Astrophys. Space Sci. Trans., 7, 175-178, doi:10.5194/astra-7-175-2011, 2011.

Astrophysics and Space Sciences Transactions

An Open Access Journal of the Arbeitsgemeinschaft Extraterrestrische Forschung e.V.