They did, however, by direct comparisons find that these factors were the same for the gamma rays of radium and thorium as for the cosmic rays, thus bringing to light another significant similarity in behaviour of these two types of radiations....
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Highly relativistic jets from merger and accretion induced collapse of compact stellar objects, which may produce the cosmological gamma ray bursts (GRBs), are also very efficient and powerful cosmic ray accelerators. The expected luminosity, energy spectrum and chemical composition of cosmic rays from...
A brief assessment if given of the question of a gradient of cosmic ray intensity in the Galaxy. It is concluded that there is certainly a gradient in the electron component. Concerning the nuclear...doi:10.1007/978-94-009-3945-5_7A. W. Wolfendale...
Ultra-high energy cosmic rays, cascade gamma-rays, and high-energy neutrinos from gamma-ray bursts Gamma-ray bursts (GRBs) are sources of energetic, highly variable fluxes of gamma rays, which demonstrates that they are powerful particle accelerators. Be... CD Dermer,A Atoyan - 《New Journal...
Gamma rays: galaxies: clustersRadio continuum: galaxiesAcceleration of particlesMagnetic fieldsObservations of giant radio halos provide unambiguous evidence for the existence of cosmic ray (CR) electrons and magnetic fields in galaxy clusters. The physical mechanism generating radio halos is still heavily...
Gamma rays are generated by the decay of naturally occurring, long-lived radionuclides of potassium, thorium, and uranium and by interactions of cosmic-ray particles with other nuclei. A γ-ray spectrometer on the Soviet Phobos-2 orbiter provided the first analyses of two broad areas of Mars. ...
The little we do know of the physical conditions in gamma-ray bursters makes them conducive to the acceleration of high-energy cosmic rays, especially if they are at cosmological distances. We find that, with the observed statistics and fluxes of gamma-ray bursts, cosmological bursters may be...
The detection of gamma rays above 100 TeV is key to understanding the origin of very-high-energy cosmic rays, which have been a mystery since their discovery in 1912. With further observations using this new window, we expect to identify the origin of cosmic rays in our Galaxy," Huang ...
Cosmic rays and gamma radiation from the shell of SN1987A Detection of high-energy gamma rays from young supernovae shells 1,2 can directly prove the hypothesis that the main sources of cosmic rays (CR) in our Ga... VS Berezinsky,VL Ginzburg - 《Nature》 被引量: 83发表: 1987年 The...