Gamma ray

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Gamma ray

A high-energy photon, emitted by radioactive substances.
References in periodicals archive ?
It allowed for the stacking of 200 separate observations on top of each other to re-create the image of a gamma-ray burst in much better quality - yet, no trace of a radio afterglow was found.
The Gamma-ray Burst Monitor (GBM) aboard NASA's Fermi Gamma-ray Space Telescope captured the initial wave of gamma rays from GRB 130427A shortly after 3:47 a.
LAT is the modern-day version of the Energetic Gamma-Ray Experiment Telescope (EGRET) instrument, which flew more than a decade ago on CGRO.
NASA's Compton Gamma-Ray Observatory, which operated in the 1990s, detected high-energy flares, but the galaxy was quiet during Fermi's first two and a half years in orbit.
A gamma-ray burst originating within 6,000 light years from Earth would have a devastating effect on life," said Dr.
suggest the gamma-ray signals may be coming not from the galactic center but from an unusual X-ray source known as GX1+4, in the same region of the sky.
We think that protons accelerated in the remnant are colliding with gas atoms, causing the gamma-ray emission," Funk said.
This would allow observers to detect gamma-rays emitted from material traveling toward or away from the Earth.
Washington, November 27 (ANI): NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic microquasar.
Gamma-rays and positrons emitted by unshielded nuclear reactors aboard more than 30 Soviet satellites have interfered with several space research projects during the 1980s, a problem long kept hidden by U.
For now, Fermi's flurry of initial findings--which include discoveries about gamma-ray bursts as well as a possible new class of pulsars, the rapidly spinning corpses of exploded stars--poses new puzzles.
The explosion, known as a gamma-ray burst and designated GRB 130427A, has topped the charts as one of the brightest ever seen.