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
electromagnetic radiation,electromagnetic wave,nonparticulate radiation- radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge electromagnetic spectrum- the entire frequency range of electromagnetic waves ...
γ-ray emission mechanism are discussed.We suggest that the main γ-ray radiation mechanism is probably the synchrotron self-Compton process.The inverse Compton scattering of the radiation from hot circumscribe dust.by beamed ultrarelativistic electrons,is likely to be an important complementary ...
The Fermi Gamma-ray Space Telescope, as an all-sky survey and monitoring mission, is producing well-sampled gamma-ray light curves for dozens of blazars and other high-energy sources. We report highlights of gamma-ray variability properties, and outline multi-frequency observing campaigns that are...
Isolation of X-rays and gamma rays by a common alternative wavelength (or equivalent frequency or photon energy). Below any wavelength is defined as noncombustion, such as 10−11 m (0.1 A), called a gamma ray. This parameter allocates photons in an ambiguous range, but it is possible ...
Gamma-Ray Observatories are scientific facilities in space that detect and study high-energy gamma-ray emissions from celestial sources, providing valuable data on a wide range of astronomical phenomena such as Active Galactic Nuclei and blazars. AI generated definition based on: Advances in Space Res...
3), leading to patterned firing in the gamma frequency range (~ 25 ms ISI), both for mPFC and Reu cells. Of notable interest was the decreased spiking probability at the ~ 17 ms mark which is suggestive of either GABAA-mediated inhibition or refractory periods, as predicted by ...
“It’s like focusing a flashlight’s beam into a narrow column, as opposed to a broad beam that washes across a whole wall,” Laskar said. “In fact, this was one of the narrowest jets seen for a gamma-ray burst so far, which gives us a hint as to why the afterglow appeared as...
We derive the luminosity function phi(L) and redshift distribution Psi(z) of short gamma-ray bursts (SGRBs) using all the available observer-frame constraints (i.e. peak flux, fluence, peak energy and duration distributions) of the large population of Fermi SGRBs and the rest-frame properti...
(Fig.2) requires the synchrotron peak to lie close to the optical range, constraining the value of the synchrotron frequencyνmand the peak fluxFpk; the X-ray spectrum places the cooling frequency atνc > 10 keV and provides a measurement ofp ≈ 2.0–2.1, and the X-ray ...