cosmic ray

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  • noun

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highly penetrating ionizing radiation of extraterrestrial origin

References in periodicals archive ?
Cosmic rays form the main source of the atmospheric ionization in the troposphere and lower stratosphere, contributing significantly also to the ionization of higher atmospheric layers.
When cosmic rays collide with interstellar gas, they produce gamma rays.
The mechanism for the acceleration of cosmic rays needs to be completely revised," says Piergiorgio Picozza, a physicist at the University of Rome Tor Vergata in Italy.
Compared with conventional SRAM, Mitsubishi Electric's new synchronous SRAM is 100 times more resistant to soft errors caused by cosmic rays and 5,000 times more resistant to soft errors originating from alpha particle exposure.
But although ANITA has yet to capture this signature, it has found another kind of particle: ultra-high-energy cosmic rays.
Prevailing theory suggests that cosmic rays are accelerated to energies of billions to trillions of electron volts by the expanding shock waves generated when massive stars explode.
He was appointed as a researcher at the University of Tokyo Institute for Cosmic Ray Research.
With this model in hand, he simulated how the heliosphere would affect the cosmic rays.
At locations both in and outside of Japan, ICRR has conducted research on high-energy cosmic rays, high-energy gamma rays, and neutrinos; for example, the Super-Kamiokande(5) Project has discovered neutrino oscillations and the Tibet AS-gamma Experiment used cosmic rays to observe the sun's cosmic-ray shadow(6).
At the same time, cosmic rays originating from outside the solar system spiked.
THE invisible became visible when science teachers were shown how to build a device showing cosmic rays - from a fish tank, a baking tray and some dry ice.
LONDON, Ramadan 24, 1432, Aug 24, 2011, SPA -- New research reported on Wednesday has uncovered evidence that cosmic rays have an effect on cloud formation, influencing the world's weather, but found no proof that they help propel climate change, AP reported.
Rao, former chairman of the Indian Space Research Organisation, has argued that cosmic rays, which cannot be controlled, can have a much larger impact on climate change than previously thought.
Galactic cosmic rays are highly energetic particles, originating from unknown sources outside our solar system and hitting the Earth's surface at an extremely high speed.
Some examples of specific topics include the importance of astronomical plat archives as complementary support for astroparticle physics, dark energy models toward observational tests and data, high-energy gamma-rays from massive binary systems, anisotropy of ultra-high-energy cosmic rays from the surface array data of the Pierre Auger Observatory, jet collimation by magneto-torsional oscillations, the physics of the interaction of astrophysical jets with the interstellar and intracluster medium, galactic versus extragalactic sources for cosmic rays, neutrino astronomy with the IceCube Observatory and implications for astroparticle physics, and probing gravity in the Earth-Moon system.