Ultrahigh-Energy Cosmic Rays: Results and Prospects

@article{Kampert2013UltrahighEnergyCR,
  title={Ultrahigh-Energy Cosmic Rays: Results and Prospects},
  author={K-H. Kampert},
  journal={Brazilian Journal of Physics},
  year={2013},
  volume={43},
  pages={375-382}
}
  • K. Kampert
  • Published 10 May 2013
  • Physics
  • Brazilian Journal of Physics
Observations of cosmic rays have been improved at all energies, both in terms of higher statistics and reduced systematics. As a result, the all-particle cosmic ray energy spectrum starts to exhibit more structures than could be seen previously. Most importantly, a second knee in the cosmic ray spectrum—dominated by heavy primaries—is reported just below 1017 eV. The light component, on the other hand, exhibits an ankle-like feature above 1017 eV and starts to dominate the flux at the ankle… 

Cosmic-ray astronomy at the highest energies with ten years of data of the Pierre Auger observatory

Identifying the sources of the ultra-high energy cosmic rays (UHECRs, above 10^{18} eV), the most energetic particles known in the universe, would be an important leap forward for both the

Ultra high energy cosmic rays: implications of Auger data for source spectra and chemical composition

We use a kinetic-equation approach to describe the propagation of ultra high energy cosmic ray protons and nuclei and calculate the expected spectra and mass composition at the Earth for different

Estimation of the number of muons with muon counters

Sensitivity of IceCube cosmic ray measurements to the hadronic interaction models

The IceCube Neutrino Observatory measures cosmic-ray air showers with both its surface array IceTop and its 1.5-2.5 km deep in-ice array. IceTop measures the charge deposited by electromagnetic

A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution

Despite the significant experimental effort made in the last decades, the origin of the ultra high energy cosmic rays is still unknown. The chemical composition of these energetic particles carries

Investigation of all-flavour neutrino fluxes with the IceCube detector using the cascade signature

This thesis presents a search for the diffuse astrophysical neutrino flux in 335 days of IceCube data. IceCube is a 1 km3 neutrino detector located at the South Pole, consisting of 86 strings, each

“Super GZK” Particles in a Classic Kramers’ Diffusion-over-a-barrier Model. I. The Case of Protons

In interactions of ultra-high-energy cosmic ray (UHECR) protons with cosmic microwave background photons, we focus in this work on photopion production reactions and the effects of the measured,

References

SHOWING 1-10 OF 56 REFERENCES

CENTAURUS A: THE EXTRAGALACTIC SOURCE OF COSMIC RAYS WITH ENERGIES ABOVE THE KNEE

The origin of cosmic rays at all energies is still uncertain. In this paper, we present and explore an astrophysical scenario to produce cosmic rays with energy ranging from below 1015 to 3 × 1020

Ultra high energy cosmic rays: implications of Auger data for source spectra and chemical composition

We use a kinetic-equation approach to describe the propagation of ultra high energy cosmic ray protons and nuclei and calculate the expected spectra and mass composition at the Earth for different

Which radio galaxies can make the highest energy cosmic rays

Numerous authors have suggested that the ultra-high energy cosmic rays (UHECR) detected by the Pierre Auger Observatory and other cosmic-ray telescopes may be accelerated in the nuclei, jets or lobes

SEARCH FOR ANISOTROPY OF ULTRAHIGH ENERGY COSMIC RAYS WITH THE TELESCOPE ARRAY EXPERIMENT

We study the anisotropy of Ultra-High Energy Cosmic Ray (UHECR) events collected by the Telescope Array (TA) detector in the first 40 months of operation. Following earlier studies, we examine event

Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande.

The observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about 8×10(16) eV is reported, which is caused by heavy primaries.

OBSERVATION OF ANISOTROPY IN THE GALACTIC COSMIC-RAY ARRIVAL DIRECTIONS AT 400 TeV WITH ICECUBE

In this paper we report the first observation in the Southern hemisphere of an energy dependence in the Galactic cosmic-ray anisotropy up to a few hundred TeV. This measurement was performed using

Cosmic ray anisotropy as signature for the transition from galactic to extragalactic cosmic rays

We constrain the energy at which the transition from Galactic to extragalactic cosmic rays occurs by computing the anisotropy at Earth of cosmic rays emitted by Galactic sources. Since the diffusion

Ankle-like feature in the energy spectrum of light elements of cosmic rays observed with KASCADE-Grande

Recent results of the KASCADE-Grande experiment provided evidence for a mild knee-like structure in the all-particle spectrum of cosmic rays at $E = 10^{16.92 \pm 0.10} \, \mathrm{eV}$, which was
...