Gamma ray, electromagnetic radiation of the shortest wavelength and highest energy. Gamma rays are produced in the disintegration of radioactive atomic nuclei and in the decay of certain subatomic particles. It includes some overlap with X-rays in the el
Cosmic rays: The interaction between cosmic rays and matter releases gamma rays from bremsstrahlung or pair-production. Gamma rays bursts: Intense bursts of gamma radiation may be produced when neutron stars collide or when a neutron star interacts with a black hole. Other astronomical sources: Astr...
gamma rays Ingamma ray Gamma-ray spectroscopy, involving the precise measurement of gamma-ray photon energies emitted by different nuclei, can establish nuclear energy-level structures and allows for the identification of trace radioactive elements through their gamma-ray emissions. Gamma rays are also...
Learn about radioactive gamma decay at BYJU’S. Know about the radioactive gamma decay equation, emission, gamma rays, types, source, and applications.
Gamma-Ray Bursts (GRBs), short and intense pulses of low energy gamma-rays, have fascinated astronomers and astrophysicists since their unexpected discover... T Piran - 《Reviews of Modern Physics》 被引量: 1938发表: 2004年 Formation of Very Strongly Magnetized Neutron Stars: Implications for ...
(neutron star mergers and massive star collapses) may be discrim- inated in our numerical results. Key words: Gamma rays: bursts − ISM: jets and out- flows − stars: mass loss − shock waves 1. Introduction Since the discovery of the GRB 970228 afterglow by BeppoSAX, research on...
activity of irradiated microbial communities in general were higher than in the control sample. A fairly high biodiversity of bacteria was detected in the exposed sample of permafrost, although the microbial community structure underwent significant changes after irradiation. In particular, actinobacteria po...
The presence of a BLR could produce a spectral absorption feature due to pair production, which may either suppress all 𝛾γ-rays above a few GeV, or manifest as a harder spectrum towards the VHE regime. The geometry of the BLR does not affect the possible detection at VHE because the ...