Academic literature on the topic 'Cosmic-ray theory'

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Journal articles on the topic "Cosmic-ray theory"

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Hand, Eric. "Cosmic-ray theory unravels." Nature 463, no. 7284 (2010): 1011. http://dx.doi.org/10.1038/4631011a.

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Ferreira, Stefan E. S. "Theory of cosmic ray modulation." Proceedings of the International Astronomical Union 4, S257 (2008): 429–38. http://dx.doi.org/10.1017/s1743921309029664.

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AbstractThis work aims to give a brief overview on the topic of cosmic ray modulation in the heliosphere. The heliosphere, heliospheric magnetic field, transport parameters and the transport equation together with modulation models, which solve this equation in various degree of complexity, are briefly discussed. Results from these models are then presented where first it is shown how cosmic rays are globally distributed in an asymmetrical heliosphere which results from the relative motion between the local interstellar medium and the Sun. Next the focus shifts to low-energy Jovian electrons.
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Dorman, L. I., and I. V. Dorman. "Cosmic-ray atmospheric electric field effects." Canadian Journal of Physics 73, no. 7-8 (1995): 440–43. http://dx.doi.org/10.1139/p95-063.

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Experimental data on the atmospheric electric field effect in the cosmic-ray muon component are discussed on the basis of the general theory of cosmic-ray meteorological effects. In this framework, we develop the theory of atmospheric electric field effects in the hard- and soft-muons of secondary cosmic rays and in the neutron-monitor counting rates as well. We show that the experimental results can be understood on the basis of this theory. We also show that a sufficient atmospheric electric field effect in the cosmic-ray neutron component is to be expected because the neutron monitors work
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Ivlev, Alexei V., Kedron Silsbee, Marco Padovani, and Daniele Galli. "Rigorous Theory for Secondary Cosmic-Ray Ionization." Astrophysical Journal 909, no. 2 (2021): 107. http://dx.doi.org/10.3847/1538-4357/abdc27.

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Wittor, Denis. "Cosmic-Ray Acceleration and Magnetic Fields in Galaxy Clusters and Beyond: Insights from Radio Observations." Universe 9, no. 7 (2023): 319. http://dx.doi.org/10.3390/universe9070319.

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The discovery of diffuse radio emission in galaxy clusters proved the existence of energetic cosmic-ray electrons and cosmic magnetic fields on Mpc-scales in the Universe. Furthermore, both magnetic fields and cosmic-ray electrons are predicted to exist beyond galaxy clusters, namely, in the filaments and voids of the cosmic web. Recent detection of diffuse radio emission in intercluster bridges—the region between two merging clusters—strengthens the theory that both cosmic magnetic fields and cosmic-ray electrons exist on these large scales. Radio observations are our most powerful tool to st
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Wentzel, Donat G. "Self-Confined Cosmic Rays." Symposium - International Astronomical Union 107 (1985): 341–54. http://dx.doi.org/10.1017/s007418090007580x.

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Cosmic rays do not stream freely through the galaxy, contrary to earlier expectations. Streaming cosmic rays are slowed down by the emission of resonant Alfven waves that scatter the cosmic rays. The theory of self-confinement explains the isotropy of the bulk of the cosmic rays but not of cosmic rays above 103 Gev; it has been a stimulus to the theory for cosmic-ray acceleration at supernova shocks; and, on inclusion of diffusion in a galactic wind, it may explain the uniform cosmic-ray density out to 18 kpc in our galaxy. Rapidly streaming electrons in clusters of galaxies, in supernova remn
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KUSENKO, ALEXANDER. "COSMIC CONNECTIONS: FROM COSMIC RAYS TO GAMMA RAYS, COSMIC BACKGROUNDS AND MAGNETIC FIELDS." Modern Physics Letters A 28, no. 02 (2013): 1340001. http://dx.doi.org/10.1142/s0217732313400014.

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Combined data from gamma-ray telescopes and cosmic-ray detectors have produced some new surprising insights regarding intergalactic and galactic magnetic fields, as well as extragalactic background light. We review some recent advances, including a theory explaining the hard spectra of distant blazars and the measurements of intergalactic magnetic fields based on the spectra of distant sources. Furthermore, we discuss the possible contribution of transient galactic sources, such as past gamma-ray bursts and hypernova explosions in the Milky Way, to the observed flux of ultrahigh-energy cosmic-
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Krennrich, Frank. "TeV GAMMA RAYS: OBSERVATIONS VERSUS EXPECTATIONS & THEORY." Acta Polytechnica 53, A (2013): 635–40. http://dx.doi.org/10.14311/ap.2013.53.0635.

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The scope of this paper is to discuss two important questions relevant for TeV γ-ray astronomy; the pursuit to reveal the origin of cosmic rays in our galaxy, and the opacity of the universe in γ-rays. The origin of cosmic rays stipulated the field of TeV astronomy in the first place, and led to the development of the atmospheric Cherenkov technique; significant progress has been made in the last decade through the detection of several supernova remnants, the primary suspects for harboring the acceleration sites of cosmic rays. TeV γ-rays propagate mostly unhindered through the galactic plane,
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Shalchi, A. "Second-order quasilinear theory of cosmic ray transport." Physics of Plasmas 12, no. 5 (2005): 052905. http://dx.doi.org/10.1063/1.1895805.

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Starodubtsev, Sergei. "Shape of spectrum of galactic cosmic ray intensity fluctuations." Solar-Terrestrial Physics 8, no. 2 (2022): 71–75. http://dx.doi.org/10.12737/stp-82202211.

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The impact of solar wind plasma on fluxes of galactic cosmic rays (CR) penetrating from the outside into the heliosphere with energies above ~1 GeV leads to temporal variations in the CR intensity in a wide frequency range. Cosmic rays being charged particles, their modulation occurs mainly under impacts of the interplanetary magnetic field.
 It is well known that the observed spectrum of interplanetary magnetic field (IMF) fluctuations in a wide frequency range ν from ~10–7 to ~10 Hz has a pronounced falling character and consists of three sections: energy, inertial, and dissipative. Eac
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Dissertations / Theses on the topic "Cosmic-ray theory"

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Gieseler, Jan [Verfasser]. "Understanding Galactic Cosmic Ray Modulation: Observations and Theory / Jan Gieseler." Kiel : Universitätsbibliothek Kiel, 2018. http://d-nb.info/1155760816/34.

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Fornieri, Ottavio. "Cosmic-ray transport in the Milky Way and related phenomenology." Doctoral thesis, Università di Siena, 2021. http://hdl.handle.net/11365/1143115.

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In this thesis, we aim at studying some of the open questions regarding the origin of the "Cosmic Rays" (CRs), as well as their transport properties. The exceptional quality of the experimentally measured cosmic-ray observables, especially at the recently-achieved energies in the range ~O(100 GeV - 1 TeV), started to question the standard picture, based on a "Supernova Remnant"-(SNR)-only origin of the CRs and a diffusive propagation inspired by the "Quasi-Linear Theory" (QLT) of pitch-angle interaction against alfvénic turbulence. First, we reproduce the most relevant cosmic-ray obser
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Singleterry, Robert Clay Jr. "Neutron transport associated with the galactic cosmic ray cascade." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186421.

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Transport of low energy neutrons associated with the galactic cosmic ray cascade is analyzed in this dissertation. A benchmark quality analytical algorithm is demonstrated for use with B scRYNTRN, a computer program written by the High Energy Physics Division of N scASA Langley Research Center, which is used to design and analyze shielding against the radiation created by the cascade. B scRYNTRN uses numerical methods to solve the integral transport equations for baryons with the straight-ahead approximation, and numerical and empirical methods to generate the interaction probabilities. The st
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Kuno, Yugo Mafra 1982. "Elaboração de um método global de reconstrução de chuveiros extensos utilizando teoria da informação e otimização matemática." [s.n.], 2017. http://repositorio.unicamp.br/jspui/handle/REPOSIP/330494.

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Orientador: José Augusto Chinellato<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-09-02T17:59:22Z (GMT). No. of bitstreams: 1 Kuno_YugoMafra_M.pdf: 3634635 bytes, checksum: afd1f210608c9cb926532d441cade068 (MD5) Previous issue date: 2017<br>Resumo: O fluxo de raios cósmicos de ultra-alta energia (superiores a 10^18 eV) que chega ao topo da atmosfera é baixo, tal que torna-se necessário estudar em detalhes os chuveiros atmosféricos extensos de modo a se determinar a composição e a energia da partícula primá
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Perassa, Eder Arnedo 1982. "Métodos de estatística bayesiana e máxima entropia aplicados na análise de dados em eventos de raios cósmicos." [s.n.], 2017. http://repositorio.unicamp.br/jspui/handle/REPOSIP/331058.

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Orientador: José Augusto Chinellato<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-09-03T07:30:39Z (GMT). No. of bitstreams: 1 Perassa_EderArnedo_D.pdf: 3556275 bytes, checksum: c4e6180df4a4a5dcbfe476b7d331bee4 (MD5) Previous issue date: 2017<br>Resumo: Neste trabalho, estudamos os métodos de estatística bayesiana e máxima entropia na análise de dados em eventos de raios cósmicos. Inicialmente, fizemos um resumo sobre o desenvolvimento da física de raios cósmicos em que descrevemos alguns resultados teóricos e ex
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Wade, Richard Peter. "A systematics for interpreting past structures with possible cosmic references in Sub-Saharan Africa." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-05052009-174557/.

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Books on the topic "Cosmic-ray theory"

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1940-, Wilson John W., and United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., eds. An efficient HZETRN: (a galactic cosmic ray transport code). National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992.

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Blandford, Roger D. Particle acceleration at astrophysical shocks: A theory of cosmic ray origin. North-Holland, 1987.

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United States. National Aeronautics and Space Administration., ed. Studies using IMP, Voyager and Pioneer cosmic ray data to determine the size of the heliosphere. National Aeronautics and Space Administration, 1996.

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United States. National Aeronautics and Space Administration., ed. Studies using IMP, Voyager and Pioneer cosmic ray data to determine the size of the heliosphere. National Aeronautics and Space Administration, 1996.

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Stuewer, Roger H. The Plague Spreads to Austria and Italy. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198827870.003.0014.

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Hitler annexed Austria to Germany on March 15, 1938. Erwin Schrödinger, in Graz, soon regretted having applauded this and fled to Dublin. Stefan Meyer pre-emptively resigned his professorship in Vienna. Marietta Blau, discoverer of cosmic-ray disintegration “stars,” immigrated to Mexico. Polonium expert Elizabeth Rona immigrated to America. Renowned Lise Meitner escaped to Stockholm, where she received little scientific or personal support. Mussolini’s Fascist Italy adopted Nazi racial policies and enacted anti-Semitic laws in the fall of 1938. Bruno Rossi, dismissed from his professorship in
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Book chapters on the topic "Cosmic-ray theory"

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Shalchi, Andreas. "The Quasilinear Theory." In Nonlinear Cosmic Ray Diffusion Theories. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00309-7_3.

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Shalchi, Andreas. "The Weakly Nonlinear Theory." In Nonlinear Cosmic Ray Diffusion Theories. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00309-7_5.

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Shalchi, Andreas. "The Nonlinear Guiding Center Theory." In Nonlinear Cosmic Ray Diffusion Theories. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00309-7_4.

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Shalchi, Andreas. "The Extended Nonlinear Guiding Center Theory." In Nonlinear Cosmic Ray Diffusion Theories. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00309-7_7.

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Feinberg, Eugene L. "Particle Theory — Cosmic Rays — Accelerators Conflicts and Reconciliations." In Early History of Cosmic Ray Studies. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5434-2_33.

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Yukawa, Hideki. "Cosmic Rays and the Beginning of the Meson Theory." In Early History of Cosmic Ray Studies. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5434-2_12.

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Vink, Jacco. "Cosmic-Ray Acceleration by Supernova Remnants: Introduction and Theory." In Astronomy and Astrophysics Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55231-2_11.

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Hick, P., G. Stevens, and J. van Rooijen. "The Maximum Entropy Principle in Cosmic Ray Transport Theory." In Astrophysics and Space Science Library. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4612-5_43.

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Berezhko, E. G. "Theory of Cosmic Ray and High-Energy Gamma-Ray Production in Supernova Remnants." In Astrophysical Sources of High Energy Particles and Radiation. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0560-9_1.

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Berezhko, Evgeny. "Nonlinear Kinetic Theory of Cosmic-Ray Acceleration in Supernova Remnants." In Space Sciences Series of ISSI. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-3239-0_25.

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Conference papers on the topic "Cosmic-ray theory"

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MRIA, Luke Drury. "Galactic Cosmic Rays - Theory and Interpretation." In 35th International Cosmic Ray Conference. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.301.1081.

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Petukhova, Anastasia, Ivan Petukhov, and Stanislav Petukhov. "Theory of Forbush Decrease in a Magnetic Cloud." In 35th International Cosmic Ray Conference. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.301.0122.

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Caprioli, Damiano, Colby Haggerty, and Pasquale Blasi. "The Theory of Efficient Particle Acceleration at Shocks." In 37th International Cosmic Ray Conference. Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.395.0482.

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Mertsch, Philipp, and Markus Ahlers. "Cosmic ray small-scale anisotropies in quasi-linear theory." In 36th International Cosmic Ray Conference. Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.358.0105.

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Kota, Jozsef. "Quasi Linear Theory of Pitch-angle Scattering: an Alternative Formulation." In 38th International Cosmic Ray Conference. Sissa Medialab, 2023. http://dx.doi.org/10.22323/1.444.1295.

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Yan, Huirong. "Magnetohydrodynamic turbulence and propagation of cosmic rays: theory confronted with observations." In 37th International Cosmic Ray Conference. Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.395.0038.

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Rebel, Heinrich gerhard. "High energy cosmic ray observations." In Twenty-sixth Johns Hopkins Workshop on current problems in particle theory: high energy reactions. Sissa Medialab, 2002. http://dx.doi.org/10.22323/1.009.0010.

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Bottacini, Eugenio, Markus Böttcher, Elena Pian, Werner Collmar, and Dario Gasparrini. "Challenges in reconciling observations and theory of the brightest high-energy flare ever of 3C 279." In 35th International Cosmic Ray Conference. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.301.0642.

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Bottacini, Eugenio. "Challenges in reconciling observations and theory of the brightest gamma-ray flare ever of 3C 279." In 38th International Cosmic Ray Conference. Sissa Medialab, 2023. http://dx.doi.org/10.22323/1.444.0940.

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Ruffolo, David, T. Jitsuk, T. Pianpanit, A. P. Snodin, W. H. Matthaeus, and P. Chuychai. "Random ballistic interpretation of the nonlinear guiding center theory of perpendicular transport." In The 34th International Cosmic Ray Conference. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.236.0197.

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Reports on the topic "Cosmic-ray theory"

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Desilets, Darin. Radius of influence for a cosmic-ray soil moisture probe : theory and Monte Carlo simulations. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1011220.

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