Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande
arXiv:1107.5885 · doi:10.1103/PhysRevLett.107.171104
Abstract
We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about eV. This structure is also seen in the all-particle energy spectrum, but is less significant. Whereas the `knee' of the cosmic ray spectrum at eV was assigned to light primary masses by the KASCADE experiment, the new structure found by the KASCADE-Grande experiment is caused by heavy primaries. The result is obtained by independent measurements of the charged particle and muon components of the secondary particles of extensive air showers in the primary energy range of to eV. The data are analyzed on a single-event basis taking into account also the correlation of the two observables.
5 pages, 5 figures, accepted by PRL, published October, 7th, 2011
Cited by in corpus (94)
- Measurements of the Cosmic Ray Composition with Air Shower Experiments
- Spectrum of cosmic-ray nucleons and the atmospheric muon charge ratio
- KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
- Probing the Galactic Origin of the IceCube Excess with Gamma-Rays
- Open Questions in Cosmic-Ray Research at Ultrahigh Energies
- Radio detection of Cosmic-Ray Air Showers and High-Energy Neutrinos
- The spectrum of high-energy cosmic rays measured with KASCADE-Grande
- Measurement of the cosmic ray energy spectrum with IceTop-73
- Ultra high energy cosmic rays: implications of Auger data for source spectra and chemical composition
- Ankle-like Feature in the Energy Spectrum of Light Elements of Cosmic Rays Observed with KASCADE-Grande
- UHECR acceleration at GRB internal shocks
- Extensive Air Showers and Ultra High-Energy Cosmic Rays: A Historical Review
- A complete model of the CR spectrum and composition across the Galactic to Extragalactic transition
- Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers
- Transition from galactic to extragalactic cosmic rays
- Influence of hadronic interaction models and the cosmic ray spectrum on the high energy atmospheric muon and neutrino flux
- Characterization of the Atmospheric Muon Flux in IceCube
- Spectrum and Anisotropy of Cosmic Rays at TeV-PeV-energies and Contribution of Nearby Sources
- Ultrahigh Energy Cosmic Ray Nuclei from Extragalactic Pulsars and the effect of their Galactic counterparts
- KASCADE-Grande Limits on the Isotropic Diffuse Gamma-Ray Flux between 100 TeV and 1 EeV
- Cosmic Ray Models
- Escape model for Galactic cosmic rays and an early extragalactic transition
- Cosmogenic neutrinos and ultra-high energy cosmic ray models
- Hint for a TeV neutrino emission from the Galactic Ridge with ANTARES
- Probing the evolution of the EAS muon content in the atmosphere with KASCADE-Grande
- A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES
- Ultra-High-Energy Cosmic Rays from Radio Galaxies
- Explaining the Spectra of Cosmic Ray Groups above the Knee by Escape from the Galaxy
- A model for the transport of muons in extensive air showers
- Diffuse Emission of Galactic High-Energy Neutrinos from a Global Fit of Cosmic Rays
- First Experimental Characterization of Microwave Emission from Cosmic Ray Air Showers
- High-Energy Cosmic Rays and the Greisen-Zatsepin-Kuzmin Effect
- On the Charm Contribution to the Atmospheric Neutrino Flux
- Cosmic Rays from the Ankle to the Cut-Off
- Diffusion of cosmic rays at EeV energies in inhomogeneous extragalactic magnetic fields
- Origin of very high and ultra high energy cosmic rays
- Study of cosmic ray events with high muon multiplicity using the ALICE detector at the CERN Large Hadron Collider
- Cosmic Ray Origin: Lessons from Ultra-High-Energy Cosmic Rays and the Galactic/Extragalactic Transition
- Extragalactic cosmic rays and their signatures
- Comparing LOPES measurements of air-shower radio emission with REAS 3.11 and CoREAS simulations
- A cosmic-ray database update: CRDB v4.1
- Spectral features in the cosmic ray fluxes
- A new method for reconstructing the muon lateral distribution with an array of segmented counters
- IceCube Constraints on Fast-Spinning Pulsars as High-Energy Neutrino Sources
- Cosmic ray composition measurements and cosmic ray background free gamma-ray observations with Cherenkov telescopes
- Binary Neutron Star Merger Remnants as Sources of Cosmic Rays Below the "Ankle"
- Cosmic Rays from the Knee to the Ankle
- Cosmic Rays around eV: Implications of Contemporary Measurements on the Origin of the Ankle Feature
- Six observations consistent with the electron neutrino being a tachyon with mass:
- High-Energy Galactic Cosmic Rays (Astro2020 Science White Paper)
- Reacceleration of Galactic Cosmic Rays Beyond the Knee at the Termination Shock of a Cosmic-Ray-Driven Galactic Wind
- A scenario for the Galactic cosmic rays between the knee and the second-knee
- Implications of supernova remnant origin model of galactic cosmic rays on Gamma rays from young supernova remnants
- Cosmic rays: the spectrum and chemical composition from to eV
- UHECR: Signatures and Models
- Selected Topics in Cosmic Ray Physics
- PeV-EeV neutrinos from gamma-ray blazars due to ultrahigh-energy cosmic-ray propagation
- Possible contribution of X-ray binary jets to the Galactic cosmic ray and neutrino flux
- Determination of the Cosmic-Ray Chemical Composition: Open Issues and Prospects
- Cosmic ray mass composition at the knee using azimuthal fluctuations of air shower particles detected at ground by the KASCADE experiment
- Ultra-High Energy Cosmic Rays: Results and Prospects
- Ultra-high-energy cosmic rays from ultra-fast outflows of active galactic nuclei
- On the prompt contribution to the atmospheric neutrino flux
- On the PeV knee of cosmic rays spectrum and TeV cutoff of electron spectrum
- Ultrarelativistic generalized Lorentzian thermodynamics and the differential cosmic ray energy flux
- Spatial and temporal structure of EAS reflected Cherenkov light signal
- An extended universality of electron distributions in cosmic ray showers of high energies and its application
- Probing the cosmic ray mass composition in the knee region through TeV secondary particle fluxes from solar surroundings
- Measurements of Cosmic Rays with IceTop/IceCube: Status and Results
- Physics Potential of a Radio Surface Array at the South Pole (ARENA 2018)
- The cosmic-ray spectrum in the PeV to EeV energy range
- Multi messenger astronomy and CTA: TeV cosmic rays and electrons
- KCDC - The KASCADE Cosmic-ray Data Centre
- Results on the primary CR spectrum and composition reconstructed with the SPHERE-2 detector
- Light, Unstable Sterile Neutrinos: Phenomenology, a Search in the IceCube Experiment, and a Global Picture
- A Brief History of the Study of High Energy Cosmic Rays using Arrays of Surface Detectors
- Quiescent black hole X-ray binaries as multi-messenger sources
- Energy spectra of KASCADE-Grande based on shower size measurements and different hadronic interaction models
- Fermi bubbles as a source of cosmic rays above 10^{15} eV
- Expectation on probing the origin of the cosmic ray knee with the LHAASO experiment
- Composition determination of cosmic rays from the muon content of the showers
- Towards solving the mass-composition problem in ultra high energy cosmic rays
- Nonthermal processes and particle acceleration in supernova remnants
- A composition dependent energy scale and the determination of the cosmic ray primary mass in the ankle region
- Model-independent Evidence for an Increase in the Mean Mass of Cosmic Rays above 3 EeV
- Classifying the Cosmic-Ray Proton and Light Groups on the LHAASO-KM2A Experiment with the Graph Neural Network
- The second knee observed in the local muon density spectra at various zenith angles
- Progenitor model of Cosmic Ray knee
- Ultra High Energy Particles Propagation and the Transition from Galactic to Extra-Galactic Cosmic Rays
- Determination of the mass and energy of primary cosmic rays above 100 TeV
- Experimental Summary: Very High Energy Cosmic Rays and their Interactions
- Recent results of cosmic-ray studies with IceTop at the IceCube Neutrino
- Cosmic-Ray Mass Composition around the Knee via Principal Component Analysis
- Ensemble fluctuations of the cosmic ray energy spectrum and the intergalactic magnetic field