The signature of local cosmic structures on the ultra-high energy cosmic ray anisotropies

Abstract

Current experiments collecting high statistics in ultra-high energy cosmic rays (UHECRs) are opening a new window on the universe facing the possibility to perform UHECR astronomy. Here we discuss a large scale structure (LSS) model for the UHECR origin for which we evaluate the expected large scale anisotropy in the UHECR arrival distribution. Employing the IRAS PSCz catalogue as tracer of the LSS, we derive the minimum statistics needed to reject or assess the correlation of the UHECRs with the baryonic distribution in the universe, in particular providing a forecast for the Auger experiment.

arXiv comment8 pages, 6 figures, contribution to the CRIS06 proceedings (Catania, Italy, May 29 - June 2, 2006)

References in corpus (16)

• KASCADE measurements of energy spectra for elemental groups of cosmic rays: Results and open problems
• The PSCz Catalogue
• Small-scale anisotropy of cosmic rays above 10^19eV observed with the Akeno Giant Air Shower Array
• Ultra-High Energy Cosmic Ray Probes of Large Scale Structure and Magnetic Fields
• Cosmic Ray Anisotropy Analysis with a Full-Sky Observatory
• Mapping deflections of extragalactic Ultra-High Energy Cosmic Rays in magnetohydrodynamic simulations of the Local Universe
• Caltech Faint Galaxy Redshift Survey XIV: Galaxy Morphology in the HDF (North) and its Flanking Fields to z=1.2
• Wiener Reconstruction of Galaxy Surveys in Spherical Harmonics
• The IRAS PSCz Dipole
• The Signature of a Correlation between $>10^{19}\mathrm{eV}$ Cosmic Ray Sources and Large Scale Structure
• Search for Point Sources of Ultra-High Energy Cosmic Rays Above 40 EeV Using a Maximum Likelihood Ratio Test
• The footprint of large scale cosmic structure on the ultra-high energy cosmic ray distribution
• Luminous infrared galaxies as possible sources of the UHE cosmic rays
• Gamma-Ray Bursts and Magnetars as Possible Sources of Ultra High Energy Cosmic Rays: Correlation of Cosmic Ray Event Positions with IRAS Galaxies
• Angular Power Spectrum Estimation of Cosmic Ray Anisotropies with Full or Partial Sky Coverage
• A new method to search for a cosmic ray dipole anisotropy

Cited by in corpus (1)

• Distortion of the ultrahigh energy cosmic ray flux from rare transient sources in inhomogeneous extragalactic magnetic fields