gamma ray

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gamma ray

[′gam·ə ‚rā]
(nuclear physics)
A high-energy photon, especially as emitted by a nucleus in a transition between two energy levels.
References in periodicals archive ?
One day 3C 279 was just one of many active galaxies we see, and the next day it was the brightest thing in the gamma-ray sky," said Sara Cutini, a Fermi Large Area Telescope scientist at the Italian Space Agency's Science Data Center in Rome.
Finding these orphans could increase the annual inventory of gamma-ray bursts by up to 100 times.
Scientists have been looking at them for signs of gamma rays for the last several years using NASA's Fermi Gamma-ray Space Telescope.
Farley Ferrante, a graduate student in SMU's Department of Physics, who monitored the observations along with two astronomers in Turkey and Hawaii, said gamma-ray bursts are believed to be the catastrophic collapse of a star at the end of its life.
A trio of NASA satellites, working in concert with ground-based robotic telescopes, captured never-before-seen details that challenge current theoretical understandings of how gamma-ray bursts work.
On September 15, 2008, a gamma-ray burst in the constellation Carina (which is best seen from the Southern Hemisphere) was recorded.
Since the birth of the Universe, Gamma-Ray explosions have been the most violent events, with ten times more power than supernovas.
As measured by the American satellite, the burst's gamma-ray brightness appeared fairly typical of gamma-ray bursts in general.
A cased-hole gamma-ray log confirms excellent quality sand and the neutron log run simultaneously with the gamma-ray indicates gas productive.
Washington, May 24 ( ANI ): An international team of astronomers led by Lars Fuhrmann from the Max Planck Institute for Radio Astronomy in Bonn, Germany, used some of the best single-dish radio telescopes for several years, in combination with NASA's Fermi Gamma-ray Space Telescope, to study the place where high energy outbursts occur.
Pulsars are the original gamma-ray astronomy point sources.
TEHRAN (FNA)- An international team of astronomers, using NASA's Fermi observatory, has made the first-ever gamma-ray measurements of a gravitational lens, a kind of natural telescope formed when a rare cosmic alignment allows the gravity of a massive object to bend and amplify light from a more distant source.