Matches in SemOpenAlex for { <https://semopenalex.org/work/W3149153975> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W3149153975 abstract "Many kinds of radiation exist in the universe, including photons and particles with a wide range of energies. Some of the radiation is produced in stars and galaxies, and some is cosmological background radiation, a relic from the history of cosmic evolution. Among all this radiation, the most energetic are cosmic ray particles: nucleons, nuclei, and even extremely energetic gamma rays. There are some observational facts about cosmic rays to give suggestions on their origin. The most important one among them is that the energy spectrum of high energy cosmic rays above 10 GeV (where the magnetic field of the sun is no longer a concern) is well represented by a power law form. This indicates cosmic ray particles are products of non-thermal processes. Their energy extends over more than 13 decades from 107 eV up to 1020 eV. In terms of its structure, the spectrum can be divided into three regions: two 'knees' and one 'ankle'. The first 'knee' appears around 3x1015 eV where the spectral power law index changes from -2.7 to -3.0. The second 'knee' is somewhere between 1017 eV and 1018 eV where the spectral slope changes from -3.0 to around -3.3. The 'ankle' is seen at or after 3x1018 eV. Above that energy the spectral slope is around -2.7, but with a large uncertainty because of poor statistics and resolution. This book deals with the final and most energetic population, the Ultra High Energy Cosmic Rays (UHECRs)." @default.
- W3149153975 created "2021-04-13" @default.
- W3149153975 creator A5011351204 @default.
- W3149153975 date "2003-01-01" @default.
- W3149153975 modified "2023-09-27" @default.
- W3149153975 title "Ultra-High Energy Particle Astrophysics" @default.
- W3149153975 hasPublicationYear "2003" @default.
- W3149153975 type Work @default.
- W3149153975 sameAs 3149153975 @default.
- W3149153975 citedByCount "0" @default.
- W3149153975 crossrefType "book" @default.
- W3149153975 hasAuthorship W3149153975A5011351204 @default.
- W3149153975 hasConcept C111309251 @default.
- W3149153975 hasConcept C120665830 @default.
- W3149153975 hasConcept C121332964 @default.
- W3149153975 hasConcept C1276947 @default.
- W3149153975 hasConcept C144024400 @default.
- W3149153975 hasConcept C149923435 @default.
- W3149153975 hasConcept C153385146 @default.
- W3149153975 hasConcept C159317903 @default.
- W3149153975 hasConcept C159985019 @default.
- W3149153975 hasConcept C185544564 @default.
- W3149153975 hasConcept C192562407 @default.
- W3149153975 hasConcept C204323151 @default.
- W3149153975 hasConcept C2908647359 @default.
- W3149153975 hasConcept C42061751 @default.
- W3149153975 hasConcept C44870925 @default.
- W3149153975 hasConcept C4839761 @default.
- W3149153975 hasConcept C98444146 @default.
- W3149153975 hasConceptScore W3149153975C111309251 @default.
- W3149153975 hasConceptScore W3149153975C120665830 @default.
- W3149153975 hasConceptScore W3149153975C121332964 @default.
- W3149153975 hasConceptScore W3149153975C1276947 @default.
- W3149153975 hasConceptScore W3149153975C144024400 @default.
- W3149153975 hasConceptScore W3149153975C149923435 @default.
- W3149153975 hasConceptScore W3149153975C153385146 @default.
- W3149153975 hasConceptScore W3149153975C159317903 @default.
- W3149153975 hasConceptScore W3149153975C159985019 @default.
- W3149153975 hasConceptScore W3149153975C185544564 @default.
- W3149153975 hasConceptScore W3149153975C192562407 @default.
- W3149153975 hasConceptScore W3149153975C204323151 @default.
- W3149153975 hasConceptScore W3149153975C2908647359 @default.
- W3149153975 hasConceptScore W3149153975C42061751 @default.
- W3149153975 hasConceptScore W3149153975C44870925 @default.
- W3149153975 hasConceptScore W3149153975C4839761 @default.
- W3149153975 hasConceptScore W3149153975C98444146 @default.
- W3149153975 hasLocation W31491539751 @default.
- W3149153975 hasOpenAccess W3149153975 @default.
- W3149153975 hasPrimaryLocation W31491539751 @default.
- W3149153975 hasRelatedWork W1540088850 @default.
- W3149153975 hasRelatedWork W1650774853 @default.
- W3149153975 hasRelatedWork W1671900125 @default.
- W3149153975 hasRelatedWork W1972412589 @default.
- W3149153975 hasRelatedWork W1975443470 @default.
- W3149153975 hasRelatedWork W1976914414 @default.
- W3149153975 hasRelatedWork W1982748595 @default.
- W3149153975 hasRelatedWork W1995285017 @default.
- W3149153975 hasRelatedWork W1998075786 @default.
- W3149153975 hasRelatedWork W2005970905 @default.
- W3149153975 hasRelatedWork W2006552881 @default.
- W3149153975 hasRelatedWork W2015853303 @default.
- W3149153975 hasRelatedWork W2081797508 @default.
- W3149153975 hasRelatedWork W2137070996 @default.
- W3149153975 hasRelatedWork W2528105537 @default.
- W3149153975 hasRelatedWork W2988596475 @default.
- W3149153975 hasRelatedWork W2994367167 @default.
- W3149153975 hasRelatedWork W3029515119 @default.
- W3149153975 hasRelatedWork W3098310204 @default.
- W3149153975 isParatext "false" @default.
- W3149153975 isRetracted "false" @default.
- W3149153975 magId "3149153975" @default.
- W3149153975 workType "book" @default.