Introduction to Cosmic Rays

  title={Introduction to Cosmic Rays},
  author={Peter L. Biermann and Guenter Sigl},
Energetic particles, traditionally called Cosmic Rays, were discovered nearly a hundred years ago, and their origin is still uncertain. Their main constituents are the normal nuclei as in the standard cosmic abundances of matter, with some enhancements for the heavier elements; there are also electrons, positrons and antiprotons. Today we also have information on isotopic abundances, which show some anomalies, as compared with the interstellar medium. And there is antimatter, but no anti-nuclei… 
Cosmic-ray diffusion near the Bohm limit in the Cassiopeia A supernova remnant
The acceleration of cosmic rays in our Galaxy by means of diffusive shock (Fermi) acceleration is believed to occur primarily in supernova remnants (SNRs). Despite considerable theoretical work, the
Ultra-High-Energy Cosmic Rays from Hypothetical Quark Novae
We explore the acceleration of ions in the quark nova (QN) scenario, in which a neutron star experiences an explosive phase transition into a quark star (born in the propeller regime). In this
Cosmic rays: a review for astrobiologists.
This work focuses on the astrobiological aspects of cosmic rays with regard to the enormous amount of new data available, some of which may, in fact, improve knowledge about the radiation of cosmic origin on Earth.
Searching for a correlation between cosmic-ray sources above 1019 eV and large scale structure
We study the anisotropy signature which is expected if the sources of ultrahigh energy, >1019 eV, cosmic rays (UHECRs) are extra-galactic and trace the large scale distribution of luminous matter.
The dawn of the particle astronomy era in ultra-high-energy cosmic rays
The Pierre Auger Observatory is the largest cosmic-ray detector on Earth, and as such is beginning to resolve past observational disagreements regarding the origin and propagation of these particles.
Cosmic rays and the primordial gas
One of the most-outstanding problems in the gravitational collapse scenario of early structure formation is the cooling of primordial gas to allow for small-mass objects to form. As the neutral
Detection of highly energetic neutrino-induced showers with a LOFAR-like array
Neutrinos are interesting particles, because they offer an extra window to the Universe. Their cross section with matter is very small, so they can travel large distances before being absorbed,
On the global anisotropy of cosmic ray data above 4???1019 eV
The distribution of arrival directions of ultra-high energy cosmic rays may yield clues to their mysterious origin. We introduce a method of invariant statistics to analyse cosmic ray data which
TeV γ-ray observation of nearby Active Galactic Nuclei with the MAGIC telescope: exploring the high energy region of the multiwavelength picture
The first three chapters of this thesis provide an introduction to the relevant physics topics discussed, starting from the basic notions and open questions about the Cosmic Rays (chapter 1), going


Light Elements and Cosmic Rays in the Early Galaxy
Observations of Be and B in low-metallicity halo stars formed during the first 109 yr of Galactic evolution show that cosmic-ray acceleration must have taken place in the early Galaxy. The observed
Observations and implications of the ultrahigh-energy cosmic rays
cosmic rays around 6310 19 eV induced by the interaction of the particles with the 2.7-K primordial photons. However, recent experimental data have established that particles exist with energies
Cosmic rays IX - Interactions and transport of cosmic rays in the Galaxy
We propose that cosmic rays interact mostly near their sources of origin. To be specic, we dierentiate the various supernovae by their mass of the progenitor star along the zero age main sequence.
Galactic Cosmic Rays from Supernova Remnants. I. A Cosmic-Ray Composition Controlled by Volatility and Mass-to-Charge Ratio
We show that the Galactic cosmic-ray source (GCRS) composition is best described in terms of (1) a general enhancement of the refractory elements relative to the volatile ones, and (2) among the
The age of the galactic cosmic rays derived from the abundance of Be-10
The isotopic composition of galactic cosmic-ray beryllium has been measured in the energy interval 30--150 MeV per nucleon with the use of cosmic-ray telescopes carried on the IMP-7 and IMP-8 Earth
The Origin of the Light Elements
By light elements I mean here all stable nuclei between hydrogen and carbon and more specifically the following isotopes : D, 3He, 4He, 6Li, 7Li, 9Be, lOB, llB. While the origin of nuclei from carbon
▪ Abstract High-energy (>100 MeV) neutrino astrophysics enters an era of opportunity and discovery as the sensitivity of detectors approaches astrophysically relevant flux levels. We review the major