什么是宇宙射线产生谱(the cosmic-ray production spectrum)?宇宙射线产生谱是描述宇宙射线中各种粒子（如...
n56100* --physics (astrophysics & cosmology)--cosmic radiationcosmic radiationelectronsionsoriginplasmaspectraturbulence cosmic radiation/sources of, role of plasma turbulence in, (tcosmic radiation/spectra of, (tplasma/turbulence of, effects in cosmic-ray sources, (t...
Cosmic ray spectrum from diffusive shock accelerationIt is now well established that cosmic rays (CRs) are accelerated at collisionless shocks through diffusive shock acceleration. However, some key physical processes, such as thermal leakage injection, self-excitation and dissipation of waves, and ...
We analyze the evolution of the ultrahigh-energy cosmic-ray spectrum upon traversing the 2.7 °K microwave background with respect to pion photoproduction, pair-production reactions, and cosmological effects. Our approach employs exact transport equations which manifestly conserve nucleon number and embody...
China's Large High Altitude Air Shower Observatory (LHAASO), a high-altitude cosmic ray observatory, has released the precise energy spectrum for the highest-energy gamma-ray radiation from the brightest gamma-ray burst (GRB) observed to date.The study, conducted by the LHAASO collaboration team,...
Measurements of cosmic rays in past decades have revealed a break around 1 PeV in the energy spectrum, which is called the "knee" of the cosmic ray energy spectrum due to its shape resembling a knee joint. However, the origin of cosmic rays in the "knee" region is still an unsolved mys...
cosmic ray electronscosmic ray variations/ A9440 Cosmic raysTHE shape of the spectrum of cosmic ray electrons in the 100 GeV range and beyond can provide information about a variety of problems in cosmic ray astrophysics. The differential energy spectrum between a few GeV and about 100–200 GeV...
BEIJING, Nov. 16 (Xinhua) -- China's Large High Altitude Air Shower Observatory (LHAASO), a high-altitude cosmic ray observatory, has released the precise energy spectrum for the highest-energy gamma-ray radiation from the brightest gamma-ray burst (GRB) observed to date. ...
Cosmic ray, a high-speed particle—either an atomic nucleus or an electron—that travels through space. Most of these particles come from sources within the Milky Way Galaxy and are known as galactic cosmic rays (GCRs). The rest of the cosmic rays origin
When the current solar cycle approached near minimum modulation in 1972, it was found that during solar quiet times the low-energy cosmic-ray proton spectrum had a typically steep form, while the helium spectrum had evolved into a ''flat'' form not observed before, such that at low energies...