First results of the cosmic ray NUCLEON experiment

Abstract

The NUCLEON experiment was designed to study the chemical composition and energy spectra of galactic cosmic ray nuclei from protons to zinc at energies of $\sim 10^{11}$--$10^{15}$\,eV per particle. The research was carried out with the NUCLEON scientific equipment installed on the Russian satellite "Resurs-P" No.\,2 as an additional payload. This article presents the results for the measured nuclei spectra related to the first approximately 250 days of the scientific data collection during 2015 and 2016. The all-particle spectrum and the spectra of p, He, C, O, Ne, Mg, Si and Fe are presented. Some interesting ratios of the spectra are also presented and discussed. The experiment is now in its beginning stage and the data still have a preliminary character, but they already give numerous indications of the existence of various non-canonical phenomena in the physics of cosmic rays, which are expressed in the violation of a simple universal power law of the energy spectra. These features of the the data are briefly discussed.

arXiv comment14 pages, 16 figures, preprint for JCAP. V2 mathces the published version of the paper

Cited by in corpus (22)

• Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station
• Measurement of the cosmic ray helium energy spectrum from 70 GeV to 80 TeV with the DAMPE space mission
• A new universal cosmic-ray knee near the magnetic rigidity 10 TV with the NUCLEON space observatory
• Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10 GeV$/n$ to 2.2 TeV$/n$ with the Calorimetric Electron Telescope on the International Space Station
• Direct Measurement of the Cosmic-Ray Helium Spectrum from 40 GeV to 250 TeV with the Calorimetric Electron Telescope on the International Space Station
• Indication of nearby source signatures of cosmic rays from energy spectra and anisotropies
• Revisiting Spatial-Dependent Propagation Model with Latest Observations of Cosmic Ray Nuclei
• Cosmic ray spectrum of protons plus helium nuclei between 6 TeV and 158 TeV from HAWC data
• Secondary cosmic rays in the NUCLEON space experiment
• A deep learning method for the trajectory reconstruction of cosmic rays with the DAMPE mission
• Measurement of the cosmic p+He energy spectrum from 50 GeV to 0.5 PeV with the DAMPE space mission
• Geminga SNR: Possible candidate of local cosmic-ray factory
• Statistically study the optimal local sources for cosmic ray nuclei and electron
• A scenario for the Galactic cosmic rays between the knee and the second-knee
• Possible bump structure of cosmic ray electrons unveiled by AMS-02 data and its common origin along with the nuclei and positron
• Evidence of fresh cosmic ray in galactic plane based on DAMPE measurement of B/C and B/O ratios
• The rigidity dependence of galactic cosmic-ray fluxes and its connection with the diffusion coefficient
• Large-scale anisotropy of Galactic cosmic rays as a probe of local cosmic-ray propagation
• BGO quenching effect on spectral measurements of cosmic-ray nuclei in DAMPE experiment
• Potential of Constraining Propagation Parameters of Galactic Cosmic Rays with the High Energy cosmic-Radiation Detection facility onboard China's Space Station
• Joint constraint on the propagation origin of the cosmic-ray spectral knee from energy spectrum and anisotropy observations
• Constraining the position of the knee in the galactic cosmic ray spectrum with ultra-high-energy diffuse $\gamma$-rays