cosmic ray

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  • noun

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highly penetrating ionizing radiation of extraterrestrial origin

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Justin Maki of NASA's Jet Propulsion Laboratory, the leader of the team that built and operates the rover's Navigation Camera, said that these can be caused by cosmic-ray hits or sunlight glinting from rock surfaces, as the most likely explanations.
To satisfy these requirements, the new system started with new hardware that has approximately ten times the integer-math performance of its predecessor, enough storage capacity to accommodate roughly six years' worth of observational data in cosmic-ray research, and the FEFS scalable file system to sidestep the bottlenecks created by centralized data I/O loads, all of which result in an efficient environment that enables more accurate research.
The close coincidence between the cosmic-ray directions and AGN locations suggests that most of the energetic cosmic rays are protons that have traveled through relatively weak intergalactic magnetic fields en route to Earth, says Mantsch.
But most of the information about cosmic-ray origins has been gleaned from that 1 percent.
It can also view high-energy subatomic particles that come from cosmic-ray collisions with atoms in Earth's atmosphere.
The galaxy's best candidate sites for cosmic-ray acceleration are the rapidly expanding shells of ionized gas and magnetic field associated with supernova explosions.
To test their approach, the Los Alamos scientists placed a 10-kilogram cylinder of tungsten about the size of a hamburger and its bun into a cosmic-ray detector made up of two stacks of thin, aluminum chambers, each one filled with argon gas and electrified steel wires.
The VERITAS observations strongly support the long-held theory that supernovae and stellar winds from massive stars are the dominant accelerators of cosmic-ray particles.
Wowed by the possibility of creating black holes in a collider that will soon be operating--and tempted by the possibility that cosmic-ray detectors might beat the Large Hadron Collider to the punch--Feng and Alfred D.
In fact, determining cosmic-ray sources is one of Fermi's key goals.
If it exists there in sufficient numbers, decays of the particles could have produced the rare, ultra-high-energy cosmic-ray strikes that have been detected, some theorists contend.
led particle physics experiment called MINOS, the scientists analyzed a four-year record of cosmic-ray data detected in a disused iron-mine in the U.
Accelerator experiments in the 1980s and earlier evidence from cosmic-ray interactions (SN: 10/30/82, p.
Washington, Nov 25 (ANI): The Los Alamos National Laboratory cosmic-ray observatory in New Mexico, US, has seen for the first time two distinct hot spots in space that appear to be bombarding Earth with an excess of cosmic rays.
These researchers proposed that the trio represented the debris left over when cosmic-ray protons-protons accelerated to high speeds in the galaxy-smashed into and shattered stationary carbon, oxygen, and nitrogen nuclei in the interstellar medium.