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Title:Evidence for Declination Dependence of Ultrahigh Energy Cosmic Ray Spectrum in the Northern Hemisphere
Authors:ID Abbasi, R.U. (Author)
ID Lundquist, Jon Paul (Author), et al.
Files:.pdf 1801.07820.pdf (687,87 KB)
MD5: 0CD33AD44410D789A035A1C6E33CC757
 
Language:English
Work type:Not categorized
Typology:1.25 - Other Component Parts
Organization:UNG - University of Nova Gorica
Abstract:The energy of the ultrahigh energy spectral cutoff was measured, integrating over the northern hemisphere sky, by the Telescope Array (TA) collaboration, to be 10^19.78±0.06 eV, in agreement with the High Resolution Fly's Eye (HiRes) experiment, whereas the Pierre Auger experiment, integrating over the southern hemisphere sky, measured the cutoff to be at 10^19.62±0.02 eV. An 11% energy scale difference between the TA and Auger does not account for this difference. However, in comparing the spectra of the Telescope Array and Pierre Auger experiments in the band of declination common to both experiments ( −15.7∘<δ<24.8∘ ) we have found agreement in the energy of the spectral cutoff. While the Auger result is essentially unchanged, the TA cutoff energy has changed to 10^19.59±0.06 eV. In this paper we argue that this is an astrophysical effect.
Keywords:Astrophysics, High Energy Astrophysical Phenomena, UHECR, Cosmic Rays, Anisotropy, Energy Spectrum
Publication version:Preprint, working version of publication, not peer-reviewed
Year of publishing:2018
Number of pages:15
Numbering:1801.07820v1
PID:20.500.12556/RUNG-5152-08da08cc-d0b4-b1ff-a01c-56de99575996 New window
COBISS.SI-ID:12839939 New window
NUK URN:URN:SI:UNG:REP:VW7NV3CJ
Publication date in RUNG:27.04.2020
Views:3131
Downloads:92
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Record is a part of a journal

Title:ArXiV
Year of publishing:2018

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License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:27.04.2020

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