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EUSO: using high energy cosmic rays and neutrinos as messengers from the unknown universe
fluorescence cosmic rays neutrinos extensive air showers
2015/9/16
Exploiting the earth atmosphere as a giant detector for the incoming extraterrestrial fl ux of high energy cosmic rays
and cosmic neutrinos, the mission «EUSO-Extreme Universe Space Observatory&...
Fermi-LAT Observations of the Diffuse Gamma-Ray Emission: Implications for Cosmic Rays and the Interstellar Medium
Fermi-LAT Observations Diffuse Gamma-Ray Emission Implications Cosmic Rays the Interstellar Medium
2012/2/23
The gamma-ray sky >100 MeV is dominated by the diffuse emissions from interactions of cosmic rays with the interstellar gas and radiation fields of the Milky Way. Observations of these diffuse emissio...
Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande
ultra-high energy cosmic rays KASCADE-Grande composition extensive air shower
2011/10/20
We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about $8 \times 10^{16}$ eV. This structure is also seen in the all-particle energy spectrum, ...
Three regions of excessive flux of cosmic rays with energies of the order of PeV are found in the experimental data of the EAS MSU array at a confidence level greater than 4\sigma. For two of them, th...
Testing the isotropy of high energy cosmic rays using spherical needlets
Testing isotropy high energy cosmic rays using spherical
2011/10/14
For many decades, ultra-high energy charged particles have been a puzzle for particle physicists and astrophysicists. Nor the sites of production, nor the mechanism responsible for the generation of t...
Constraints on the origin of ultra-high-energy cosmic rays from cosmogenic neutrinos and photons
Astroparticle physics Acceleration of particles Abundances Neutrinos Gamma-rays Relativistic processes
2011/10/11
We study the production of cosmogenic neutrinos and photons during the extragalactic propagation of ultra-high-energy cosmic rays (UHECRs). For a wide range of models in cosmological evolution of sour...
HESS J1858+020 is a TeV gamma-ray source that was reported not to have any clear cataloged counterpart at any wavelength. However, it has been recently proposed that this source is indirectly associat...
We study the change in cosmic-ray pressure, the change in cosmic-ray density, and the level of cosmic-ray induced heating via Alfven-wave damping when cosmic rays move from a hot ionized plasma to a c...
Self-consistent evolution of gas and cosmic rays in Cygnus A and similar FR II classic double radio sources
Self-consistent evolution cosmic rays
2011/1/10
In Cygnus A and other classical FR II double radio sources, powerful opposing jets from the cores of halo-centered galaxies drive out into the surrounding cluster gas, forming hotspots of shocked and ...
Cosmic rays and tests of fundamental principles
Cosmic rays tests of fundamental principles
2010/12/27
It is now widely acknowledged that cosmic rays experiments can test possible new physics directly generated at the Planck scale or at some other fundamental scale. By studying particle properties at e...
Orders of Fermi- and Plasma-Accelerations of Cosmic Rays
Fermi- and Plasma-Accelerations Cosmic Rays
2011/1/11
The generic acceleration model for ultra high energy cosmic rays, which has been introduced in {\tt 1006.5708 [astro-ph.HE]}, suggests various types of electromagnetic interactions between cosmic char...
Acceleration and Particle Field Interactions of Cosmic Rays II: Calculations
Acceleration Particle Field Cosmic Rays II
2011/1/13
Based on the generic acceleration model, which suggests different types of electromagnetic interactions between the cosmic charged particles and the different configurations of the electromagnetic (pl...
Cosmic rays: current status, historical context
Cosmic rays current status historical context
2011/1/13
The ISVHECRI conference series emphasizes the connection between high energy physics and cosmic ray physics--the study of elementary particles and nuclei from accelerators in the lab and from space. I...
The MIDAS experiment: A prototype for the microwave emission of Ultra-High Energy Cosmic Rays
The MIDAS experimen the microwave emission Ultra-High Energy Cosmic Rays
2011/1/11
Recent measurements suggest that extensive air showers initiated by ultra-high energy cosmic rays (UHECR) emit signals in the microwave band of the electromagnetic spectrum caused by the collisions of...
Cosmic rays linked to rapid mid-latitude cloud changes
Cosmic rays rapid mid-latitude cloud changes
2010/11/30
The effect of the Galactic Cosmic Ray (GCR) flux on Earth's climate is highly uncertain. Using a novel sampling approach based around observing periods of significant cloud changes, a statistically ro...