Cosmic ray spallation is a form of naturally occurring nuclear fission and nucleosynthesis. It refers to the formation of elements from the impact of cosmic rays on an object.
Cosmic Rays
Although the name would suggest that cosmic rays are some form of electromagnetic radiation, they are actually subatomic particles travelling at significant fractions of the speed of light.
cosmic rays n.
Notionally, the cause of bit rot. However, this is a semi-independent usage that may be invoked as a humorous way to handwave away any minor randomness that doesn't seem worth the bother of investigating.
Cosmic rays efficiently accelerated by exploded stars
BY DR EMILY BALDWIN
ASTRONOMY NOW
Posted: June 26, 2009 ...
Cosmic ray
Cosmic rays can loosely be defined as energetic particles originating outside of the Earth. The composition includes electrons, protons, neutrons, and atomic nuclei from a large region of the periodic table.
Cosmic Rays
Cosmic-ray Composition
Because cosmic rays don't point back to their sources, we must use indirect methods to determine their sources and the way they have traveled (or "propagated") through the Galaxy.
Cosmic Rays:
A cosmic ray is a high-speed particle--either an atomic nucleus or an electron--that travels throughout the Milky Way Galaxy, including the solar system.
Definition: cosmic ray: An extremely energetic charged particle.
Space Tragedies9 Planets in Nine DaysAstronomy 101
Related Articles ...
Cosmic ray
Wikipedia, the free encyclopedia - Cite This Source
Cosmic rays are energetic particles originating from space that impinge on Earth's atmosphere.
Cosmic Rays
Atoms and molecules in our everyday environment move relatively sedately, and the energy of each of them is small.
Cosmic Rays: Cosmic rays are very high energy atomic nuclei (mostly protons) traveling through space at close to the speed of light that strike the Earth's atmosphere.
cosmic ray
an atomic nucleus (most are protons) moving at a speed approaching that of light
cosmological constant ...
cosmic ray
Atomic nuclei (mostly protons) that are observed to strike the Earth's atmosphere with exceedingly high energies.
Cosmic ray- an extremely energetic (relativistic) charged particle
Cosmological Constant- a mathematical device used by Einstein to give space-time an inbuilt tendency to expand
Cosmology- the study of the universe as a whole ...
Cosmic rays: Extremely high-energy subatomic particles that continuously bombard Earth from all directions. Most cosmic rays hit and break up atomic nuclei in the upper atmosphere.
Cosmic Ray
Atomic nuclei that enter earth's atmosphere at nearly the speed of light. Some originate in solar flares, and some may come from supernova explosions, but their true nature is not well understood.
Cosmological Principle ...
Cosmic rays. High velocity particles reaching Earth from outer space. The heavier cosmic ray particles are broken up when they enter Earth's upper atmosphere.
Cosmogony. The study of the origin and evolution of the universe.
Cosmic Ray - Extremely energetic ions and electrons that travel through space almost at the speed of light. Most cosmic rays come from great distances and may be produced in supernovas and pulsars ...
cosmic ray: A subatomic particle traveling at tremendous velocity that strikes Earth's atmosphere from space.
cosmological constant: Einstein's constant that represents a repulsion in space to oppose gravity.
Cosmic rays are energetic particles originating from space that impinge on Earth's atmosphere. Almost 90% of all the incoming cosmic ray particles are protons, about 9% are helium nuclei and about 1% are electrons ....
s. Henrik Svensmark ...
Cosmic Ray Astronomy
the astronomy associated with the detection, propagation and origin of cosmic rays from their sources to the Earth.
Cosmic Strings ...
SOLAR COSMIC RAYS - Cosmic rays with energies ~107 to 1010 eV, primarily ejected solar flares and coronal mass ejections (CME).
[edit] Cosmic ray flux
The outward expansion of solar ejecta into interplanetary space provides overdensities of plasma that are efficient at scattering high-energy cosmic rays entering the solar system from elsewhere in the galaxy.
Primary Cosmic Rays
The cosmic rays that arrive at Earth's upper atmosphere from outer space (see also Secondary Cosmic Rays). [H76]
Primary Theory ...
Cosmic rays A stream of particles that have been accelerated to almost the speed of light in space. Some enter the Earth's atmosphere and bombard atmospheric atoms.
More about cosmic rays...
Cosmic Rays
High-energy atomic particles that travel through space at speeds close to the speed of light; also known as cosmic-ray particles.
Doppler Effect ...
Cosmic rays are thought to be - along with the radioactive rocks of the Earth - a main cause of mutations, the changes in the genetic code in living things that lead to the evolution of the species.
Cosmic rays
High-speed particles that reach the Earth from Outer Space.
Cosmology ...
cosmic ray - (n.)
A rapidly moving atomic nucleus from space. Some cosmic rays are produced in the sun, whereas others come from interstellar space and probably originate in supernova explosions.
cosmogony - (n.) ...
COSMIC RAYS
Cosmic rays are very high energy particles that travel through space near the speed of light. The 10 most abundant elements in cosmic rays are hydrogen, helium, oxygen, carbon, neon, nitrogen, magnesium, silicon, iron, and sulfur.
[6.1] COSMIC RAYS / THE CLOUD CHAMBER / THE DISCOVERY THE POSITRON
[6.2] THE DISCOVERY OF THE MUON & PION
[6.3] NUCLEAR ENERGY LEVELS / LIQUID DROP MODEL ...
13. Cosmic rays are very energetic photons. (Hint)
14. Most of the mass of our Galaxy exists in the form of dark matter. (Hint)
15. The Galactic center has been extensively studied at visible and ultraviolet wavelengths. (Hint) ...
Discovered cosmic rays.
NRL V-2 rocket - USA - (1946)
First observation of the Sun's UV spectrum.
cosmic ray an extremely energetic (relativistic) charged particle. crater bowl-shaped depression formed by the impact of a meteoroid; depression around the orifice of a volcano. D ...
albedo neutrons (AS&T Dictionary) Secondary neutrons ejected (along with other particles) in the collision of cosmic ray ions with particles of the upper atmosphere. See neutron albedo.
secondary cosmic radiation = secondary cosmic ray. secondary cosmic rays Secondary emission in the atmosphere stimulated by primary cosmic rays. See air shower.
COSMIC RAY. An extremely energetic (relativistic) charged particle. CROCHET. A sudden deviation in the sunlit geomagnetic field (H component; see GEOMAGNETIC ELEMENTS) associated with large solar FLARE X-ray emission. D REGION.
Cosmic Rays describes the Cosmic ray Air Shower Array at Louisiana State University and has a handy section explaining how photomultiplier tubes work.
High-energy galactic cosmic rays--primarily protons--have a range of penetration on the order of a few metres in meteoritic material. Any meteoroid of smaller dimensions will be radiated throughout by this proton bombardment.
Atmospheres moderate the heat lost to space at night and shield the planet surface from energetic radiation like solar ultraviolet and X-rays and the high-speed charged particles in solar wind and most cosmic rays (extremely high-energy particles ...
magnetic fields, the flux of cosmic rays and micrometeorites, and properties of celestial objects that are difficult or impossible to observe from the earth.
This distribution is similar to that of local cosmic rays (and for that matter the energetic particles producing bogus photon detections in CCDs and the like) and implies some kind of self-similar or scale-free acceleration mechanism.
The galaxy, or the Milky Way, emits radio waves as a result of synchrotron radiation from cosmic ray electrons moving through the weak galactic magnetic field. The 21-cm line emission from neutral hydrogen is also observed throughout the Galaxy.
It revealed Mars once had a magnetic field when its magnetometer detected the remains of a field that once had shielded Mars' surface from deadly cosmic rays.
The tank is down in the mine to help shield it from cosmic rays. The mile of rock overhead doesn't represent an obstacle for the neutrinos.
In 2266, a solar flare accompanied by high levels of Cosmic rays was discharged by the sun in the Minarian star system.
What reduces the intensity of the cosmic rays in the inner part of the solar system?
What causes auroras?
Wmat makes up the atmosphere on Mars?
Who was Cleomedes?
What made Cleomedes famous?
When was William Parsons Rosse, 3d earl of born?
Interesting example is shown in the enlarged fragment of the image below - in this case a cosmic ray hit from a magenta-filtered image is visible as a dark spot in the luminosity information included in L-RGB image.
Our home planet is continuously bombarded by energetic particles, cosmic rays, dust and - occasionally - larger objects, all of which can be hazardous to human life.
Van Allen, J. A. "Magnetospheres, Cosmic Rays, and the Interplanetary Medium." Ch. 3 in The New Solar System, 3rd ed. (Ed. J. K. Beatty and A. Chaikin). Cambridge, England: Cambridge University Press, pp. 34-40, 1990.
The Cosmic Ray Subsystem, CRS, on the Voyagers measures the presence and angular distribution of particles from planets' magnetospheres, and from sources outside our solar system: electrons of 3-110 MeV and nuclei 1-500 MeV from hydrogen to iron.
Cosmic and Heliospheric Learning Center--Home Page--cosmic rays and the heliosphere (9-12)
Space Sites
Goddard Space Flight Center Education Inspiring Inquisitive Minds--teacher resources for K-12 ...
Atmospheric neutrinos result from the interaction of cosmic rays with atoms in the Earth's atmosphere, creating showers of particles, many of which are unstable and produce neutrinos when they decay.
Solar Neutrinos ...
Plasma Detector (PWS/PLS)
Cosmic Ray Subsystem (CRS)
Low Energy Charged Particle Detector (LECP)
Magnetometer (MAG) ...
Millikan named "cosmic rays" in 1928, while studing the radiation from space. He won the Nobel Prize for Physics in 1923 for his work on the electron's charge and his work on the photoelectric effect. Millikan wrote many books.
Darker areas may primordial organic material or the result of photochemical reactions driven by cosmic rays. In general, Pluto is somewhat brighter and pinker than its moon Charon.
degree in environmental science at Medgar Evers College, part of the City University of New York, said the contest challenged him to learn more about the environment on the moon and the risks to astronauts. He researched dangers like cosmic rays and ...
Because of the lack of any atmosphere the temperature of the Moon's surface varies between -180°C and +110°C. The Moon offers little protection from the solar wind, cosmic rays or micrometeorites and so it is not surprising that there is no form of ...
where the middle value is used out of a distribution of different values, above and below which lie an equal number of values. A median combine is useful for combining a group of images to remove renegade pixels that might result from cosmic ray ...
The spheres seen along the side of the tank are light detectors that register the rare interaction of a neutrino with a water molecule. Image courtesy of ICRR (Institute for Cosmic Ray Research), The University of Tokyo .
 See also: Rays, Cosmic rays, Energy, Earth, Solar
|
