Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Cosmic_ray> ?p ?o }
- Cosmic_ray abstract "Cosmic rays are immensely high-energy radiation, mainly originating outside the Solar System. They may produce showers of secondary particles that penetrate and impact the Earth's atmosphere and sometimes even reach the surface. Composed primarily of high-energy protons and atomic nuclei, they are of mysterious origin. Data from the Fermi space telescope (2013) has been interpreted as evidence that a significant fraction of primary cosmic rays originate from the supernovae of massive stars. However, this is not thought to be their only source. Active galactic nuclei probably also produce cosmic rays.The term ray is an historical accident, as cosmic rays were at first, and wrongly, thought to be mostly electromagnetic radiation. In common scientific usage high-energy particles with intrinsic mass are known as \"cosmic\" rays, while photons, which are quanta of electromagnetic radiation (and so have no intrinsic mass) are also known by their common names, such as \"gamma rays\" or \"X-rays\", depending on their origin.Cosmic rays attract great interest practically, due to the damage they inflict on microelectronics and life outside the protection of an atmosphere and magnetic field, and scientifically, because the energies of the most energetic ultra-high-energy cosmic rays (UHECRs) have been observed to approach 3 × 1020 eV, about 40 million times the energy of particles accelerated by the Large Hadron Collider. One can show that such enormous energies might be achieved by means of the Centrifugal mechanism of acceleration in Active galactic nuclei. At 50 J, the highest-energy ultra-high-energy cosmic rays have energies comparable to the kinetic energy of a 90-kilometre-per-hour (56 mph) baseball. As a result of these discoveries, there has been interest in investigating cosmic rays of even greater energies. Most cosmic rays, however, do not have such extreme energies; the energy distribution of cosmic rays peaks at 0.3 gigaelectronvolts (4.8×10−11 J).Of primary cosmic rays, which originate outside of Earth's atmosphere, about 99% are the nuclei (stripped of their electron shells) of well-known atoms, and about 1% are solitary electrons (similar to beta particles). Of the nuclei, about 90% are simple protons, i. e. hydrogen nuclei; 9% are alpha particles, and 1% are the nuclei of heavier elements, called HZE ions. A very small fraction are stable particles of antimatter, such as positrons or antiprotons. The precise nature of this remaining fraction is an area of active research. An active search from Earth orbit for anti-alpha particles has failed to detect them.".
- Cosmic_ray thumbnail Cosmic_ray_flux_versus_particle_energy.svg?width=300.
- Cosmic_ray wikiPageExternalLink 1995psu..reptR....B.
- Cosmic_ray wikiPageExternalLink index.php?option=com_content&task=view&id=111&Itemid=107.
- Cosmic_ray wikiPageExternalLink acr.html.
- Cosmic_ray wikiPageExternalLink anomalous.html.
- Cosmic_ray wikiPageExternalLink 2868041.stm.
- Cosmic_ray wikiPageExternalLink 3710735.stm.
- Cosmic_ray wikiPageExternalLink 4282657.stm.
- Cosmic_ray wikiPageExternalLink cosmicrayrpp.pdf.
- Cosmic_ray wikiPageExternalLink 07oct_afraid.htm?list84849.
- Cosmic_ray wikiPageExternalLink index.html.
- Cosmic_ray wikiPageExternalLink tiger.gsfc.nasa.gov.
- Cosmic_ray wikiPageExternalLink www.ASPERA-EU.org.
- Cosmic_ray wikiPageExternalLink www.hap-astroparticle.org.
- Cosmic_ray wikiPageExternalLink chapter8_04.pdf.
- Cosmic_ray wikiPageExternalLink Showers.html.
- Cosmic_ray wikiPageExternalLink article.cfm?id=shielding-space-travelers.
- Cosmic_ray wikiPageExternalLink watch?v=xJtSWdT598k.
- Cosmic_ray wikiPageExternalLink watch?v=xcMbmj-lBEg.
- Cosmic_ray wikiPageID "47687".
- Cosmic_ray wikiPageLength "78884".
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- Cosmic_ray wikiPageRevisionID "708299557".
- Cosmic_ray wikiPageWikiLink Absorbed_dose.
- Cosmic_ray wikiPageWikiLink Abundance_of_the_chemical_elements.
- Cosmic_ray wikiPageWikiLink Active_galactic_nucleus.
- Cosmic_ray wikiPageWikiLink Advanced_Composition_Explorer.
- Cosmic_ray wikiPageWikiLink Advanced_Thin_Ionization_Calorimeter.
- Cosmic_ray wikiPageWikiLink Air_shower_(physics).
- Cosmic_ray wikiPageWikiLink Airbus_A330.
- Cosmic_ray wikiPageWikiLink Akeno_Giant_Air_Shower_Array.
- Cosmic_ray wikiPageWikiLink Alan_Andrew_Watson.
- Cosmic_ray wikiPageWikiLink Alpha_Magnetic_Spectrometer.
- Cosmic_ray wikiPageWikiLink Alpha_particle.
- Cosmic_ray wikiPageWikiLink Antimatter.
- Cosmic_ray wikiPageWikiLink Antiproton.
- Cosmic_ray wikiPageWikiLink Archaeology.
- Cosmic_ray wikiPageWikiLink Astronomical_unit.
- Cosmic_ray wikiPageWikiLink Atmosphere_of_Earth.
- Cosmic_ray wikiPageWikiLink Atom.
- Cosmic_ray wikiPageWikiLink Atomic_nucleus.
- Cosmic_ray wikiPageWikiLink Aurora.
- Cosmic_ray wikiPageWikiLink Azimuth.
- Cosmic_ray wikiPageWikiLink BESS.
- Cosmic_ray wikiPageWikiLink Beryllium.
- Cosmic_ray wikiPageWikiLink Beryllium-10.
- Cosmic_ray wikiPageWikiLink Beta_particle.
- Cosmic_ray wikiPageWikiLink Bhabha_scattering.
- Cosmic_ray wikiPageWikiLink Big_Bang.
- Cosmic_ray wikiPageWikiLink Boron.
- Cosmic_ray wikiPageWikiLink Brady_Haran.
- Cosmic_ray wikiPageWikiLink Bruno_Rossi.
- Cosmic_ray wikiPageWikiLink Bubble_chamber.
- Cosmic_ray wikiPageWikiLink CHICOS.
- Cosmic_ray wikiPageWikiLink CLOUD.
- Cosmic_ray wikiPageWikiLink CMOS.
- Cosmic_ray wikiPageWikiLink Carbon-14.
- Cosmic_ray wikiPageWikiLink Cassini–Huygens.
- Cosmic_ray wikiPageWikiLink Category:Astroparticle_physics.
- Cosmic_ray wikiPageWikiLink Category:Cosmic_rays.
- Cosmic_ray wikiPageWikiLink Category:Radiation.
- Cosmic_ray wikiPageWikiLink Category:Solar_phenomena.
- Cosmic_ray wikiPageWikiLink Category:Stellar_phenomena.
- Cosmic_ray wikiPageWikiLink Centaurus_A.
- Cosmic_ray wikiPageWikiLink Central_nervous_system_effects_from_radiation_exposure_during_spaceflight.
- Cosmic_ray wikiPageWikiLink Central_processing_unit.
- Cosmic_ray wikiPageWikiLink Centrifugal_mechanism_of_acceleration.
- Cosmic_ray wikiPageWikiLink Cherenkov_radiation.
- Cosmic_ray wikiPageWikiLink Chicago_Air_Shower_Array.
- Cosmic_ray wikiPageWikiLink Chlorine-36.
- Cosmic_ray wikiPageWikiLink Cloud_chamber.
- Cosmic_ray wikiPageWikiLink Compton_Gamma_Ray_Observatory.
- Cosmic_ray wikiPageWikiLink Compton_scattering.
- Cosmic_ray wikiPageWikiLink Cosmic_Ray_Energetics_and_Mass_Experiment.
- Cosmic_ray wikiPageWikiLink Cosmic_microwave_background.
- Cosmic_ray wikiPageWikiLink Cosmic_ray_spallation.
- Cosmic_ray wikiPageWikiLink Cosmic_ray_visual_phenomena.
- Cosmic_ray wikiPageWikiLink Crab_Nebula.
- Cosmic_ray wikiPageWikiLink Dark_matter.
- Cosmic_ray wikiPageWikiLink Domenico_Pacini.
- Cosmic_ray wikiPageWikiLink Earth.
- Cosmic_ray wikiPageWikiLink Earths_magnetic_field.
- Cosmic_ray wikiPageWikiLink Edward_P._Ney.
- Cosmic_ray wikiPageWikiLink Eiffel_Tower.
- Cosmic_ray wikiPageWikiLink Einstein_Observatory.
- Cosmic_ray wikiPageWikiLink Electromagnetic_radiation.
- Cosmic_ray wikiPageWikiLink Electrometer.
- Cosmic_ray wikiPageWikiLink Electron.
- Cosmic_ray wikiPageWikiLink Electronics.
- Cosmic_ray wikiPageWikiLink Electronvolt.
- Cosmic_ray wikiPageWikiLink Environmental_radioactivity.
- Cosmic_ray wikiPageWikiLink Erg.
- Cosmic_ray wikiPageWikiLink European_Physical_Journal_H.
- Cosmic_ray wikiPageWikiLink Extragalactic_cosmic_ray.
- Cosmic_ray wikiPageWikiLink Fermi_Gamma-ray_Space_Telescope.
- Cosmic_ray wikiPageWikiLink Flux.
- Cosmic_ray wikiPageWikiLink Forbush_decrease.
- Cosmic_ray wikiPageWikiLink Fritz_Zwicky.
- Cosmic_ray wikiPageWikiLink Fukushima_Daiichi_nuclear_disaster.