Global anisotropy of arrival directions of ultra-high-energy cosmic rays: capabilities of space-based detectors
arXiv:0710.1382 · doi:10.1088/1475-7516/2008/03/003
Abstract
Planned space-based ultra-high-energy cosmic-ray detectors (TUS, JEM-EUSO and S-EUSO) are best suited for searches of global anisotropies in the distribution of arrival directions of cosmic-ray particles because they will be able to observe the full sky with a single instrument. We calculate quantitatively the strength of anisotropies associated with two models of the origin of the highest-energy particles: the extragalactic model (sources follow the distribution of galaxies in the Universe) and the superheavy dark-matter model (sources follow the distribution of dark matter in the Galactic halo). Based on the expected exposure of the experiments, we estimate the optimal strategy for efficient search of these effects.
19 pages, 7 figures, iopart style. v.2: discussion of the effect of the cosmic magnetic fields added; other minor changes. Simulated UHECR skymaps available at http://livni.inr.ac.ru/UHECRskymaps/
References in corpus (11)
- Correlation of the highest energy cosmic rays with nearby extragalactic objects
- Search for ultra-high energy photons using air showers
- Upper limit on the ultra-high-energy photon flux from AGASA and Yakutsk data
- On the ultra-high energy cosmic ray horizon
- Comment on "Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects"
- Measurement of the UHECR energy spectrum using data from the Surface Detector of the Pierre Auger Observatory
- Constraining the fraction of primary gamma rays at ultra-high energies from the muon data of the Yakutsk extensive-air-shower array
- Test of hadronic interaction models with data from the Pierre Auger Observatory
- GZK Photons in the Minimal Ultra High Energy Cosmic Rays Model
- Signatures of Magnetized Large Scale Structure in Ultra-High Energy Cosmic Rays
- Search for Ultra-High Energy Photons with the Pierre Auger Observatory
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- On the interpretation of the cosmic-ray anisotropy at ultra-high energies
- Search for Galactic disk and halo components in the arrival directions of high-energy astrophysical neutrinos
- Statistical Analysis of the Correlation between Active Galactic Nuclei and Ultra-High Energy Cosmic Rays
- Towards a model of population of astrophysical sources of ultra-high-energy cosmic rays
- Search for single sources of ultra high energy cosmic rays on the sky
- Ultra high energy cosmic rays from super-heavy dark matter in the context of large exposure observatories
- Sensitivity of full-sky experiments to large scale cosmic ray anisotropies
- Bounds from multi-messenger astronomy on the Super Heavy Dark Matter
- On Anisotropy of Ultra-High Energy Cosmic-Rays
- Note on galaxy catalogues in UHECR flux modelling
- Ultra high-energy cosmic rays from beyond the Greisen-Zatsepin-Kuz'min horizon
- The influence of the observatory latitude on the study of ultra high energy cosmic rays