The Cosmic-ray Halo: Insight from Gamma Rays and Cosmic-ray Observations
نویسندگان
چکیده
منابع مشابه
TeV Gamma - Ray Observations and the Origin of Cosmic Rays
The present final part of a triad of plenary talks on the results of high energy gamma-ray astronomy and the origin of Cosmic Rays is primarily devoted to the physics interpretation. I will start with the stereoscopic method of operating several imaging atmospheric Cherenkov telescopes in coincidence as pioneered by HEGRA, and a summary description of the results obtained. Then I will turn to t...
متن کاملGamma - Ray Bursts , Cosmic - Rays and Neutrinos ∗
The γ-ray burst (GRB) model for production of ultra-high-energy, > 10 eV, cosmic-rays is based on the hypothesis that GRBs arise from the dissipation of the kinetic energy of relativistic fireballs at cosmological distances. Recent observations of delayed low energy emission, “afterglow,” from GRB sources strongly support the validity of this hypothesis. Observations also provide quantitative s...
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Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...
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Several lines of evidence point to a relationship between gamma-ray bursts (GRBs) and the high mass stars that explode as supernovae. Arguments that GRB sources accelerate cosmic rays (CRs) are summarized. High-energy neutrino detection from individual GRBs would mean that they are hadronically dominated, that is, that the amount of energy deposited in the form of nonthermal hadrons in GRB blas...
متن کاملCosmic Rays from Gamma Ray Bursts in the Galaxy
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1991
ISSN: 0074-1809
DOI: 10.1017/s0074180900089051