Academic literature on the topic 'Cosmic rays; Gamma rays'
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Journal articles on the topic "Cosmic rays; Gamma rays"
Osborne, J. L., A. W. Wolfendale, and L. Zhang. "Soft X-rays and cosmic gamma-rays." Monthly Notices of the Royal Astronomical Society 276, no. 2 (September 15, 1995): 409–16. http://dx.doi.org/10.1093/mnras/276.2.409.
Full textKUSENKO, ALEXANDER. "COSMIC CONNECTIONS: FROM COSMIC RAYS TO GAMMA RAYS, COSMIC BACKGROUNDS AND MAGNETIC FIELDS." Modern Physics Letters A 28, no. 02 (January 20, 2013): 1340001. http://dx.doi.org/10.1142/s0217732313400014.
Full textDermer, C. D., and G. Powale. "Gamma rays from cosmic rays in supernova remnants." Astronomy & Astrophysics 553 (April 26, 2013): A34. http://dx.doi.org/10.1051/0004-6361/201220394.
Full textVan Der Walt, D. J., and A. W. Wolfendale. "Gamma rays and the origin of cosmic rays." Space Science Reviews 47, no. 1-2 (March 1988): 1–45. http://dx.doi.org/10.1007/bf00223236.
Full textSzabelski, J., D. J. van der Walt, J. Wdowczyk, and A. W. Wolfendale. "Gamma rays and the origin of cosmic rays." Advances in Space Research 9, no. 12 (January 1989): 129–41. http://dx.doi.org/10.1016/0273-1177(89)90320-7.
Full textLevinson, Amir. "Probing Cosmic Accelerators Using VHE Gamma Rays and UHE Cosmic Rays." Nuclear Physics A 827, no. 1-4 (August 2009): 561c—566c. http://dx.doi.org/10.1016/j.nuclphysa.2009.05.123.
Full textDiehl, Roland, Dieter H. Hartmann, and Nikos Prantzos. "Gamma rays from cosmic radioactivities." Meteoritics & Planetary Science 42, no. 7-8 (August 2007): 1145–57. http://dx.doi.org/10.1111/j.1945-5100.2007.tb00566.x.
Full textTrubnikov, B. A. "Cosmic rays and gamma-ray bursts." Uspekhi Fizicheskih Nauk 167, no. 3 (1997): 345. http://dx.doi.org/10.3367/ufnr.0167.199703k.0345.
Full textXinyu, Chi, Charles Dahanayake, Jerzy Wdowczyk, and Arnold W. Wolfendale. "Cosmic gamma rays from collapsing cosmic strings." Astroparticle Physics 1, no. 2 (March 1993): 239–43. http://dx.doi.org/10.1016/0927-6505(93)90024-8.
Full textINOUE, SUSUMU, MASAHIRO NAGASHIMA, TAKERU K. SUZUKI, and WAKO AOKI. "COSMIC RAYS AND GAMMA-RAYS IN LARGE-SCALE STRUCTURE." Journal of The Korean Astronomical Society 37, no. 5 (December 1, 2004): 447–54. http://dx.doi.org/10.5303/jkas.2004.37.5.447.
Full textDissertations / Theses on the topic "Cosmic rays; Gamma rays"
Richardson, K. M. "Gamma rays, cosmic rays and local molecular clouds." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/942/.
Full textGabici, Stefano. "Gamma ray astronomy and the origin of galactic cosmic rays." Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2011. http://tel.archives-ouvertes.fr/tel-00719791.
Full textPinzke, Anders. "Gamma-Ray Emission from Galaxy Clusters : DARK MATTER AND COSMIC-RAYS." Doctoral thesis, Stockholms universitet, Fysikum, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-42453.
Full textAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Accepted.
Rengifo, Gonzáles Javier. "Disentangling atmospheric cascades started by gamma rays from cosmic rays with CORSIKA." Master's thesis, Pontificia Universidad Católica del Perú, 2017. http://tesis.pucp.edu.pe/repositorio/handle/123456789/8716.
Full textIn this work we search for a method to differentiate between particle showers produced by cosmic rays and by gamma rays at TeV energies, using CORSIKA simulations. This method tries to solve the dominant hadron flux background problem when looking for gamma-ray signals measured by different experiments. The results of this work can be applied to the study of Gamma-Ray Bursts (GRBs). GRBs emit very energetic photons, which after interacting in the Earth's atmosphere, produce a large detectable electromagnetic cascade of secondary particles. The procedure will be to simulate events produced by photons, the signal, and protons, the most abundant cosmic-ray background. We extract several parameters from fitting particle air-shower longitudinal profiles, characterizing the simulated showers. Some of the most important _t parameters are the shower maximum (Xmax), the width of the shower FWHM, the asymmetry parameter, the maximum number of particles Nmax and the shower start Xstart. There are different experiments using water Cherenkov tanks and fluorescence detectors which can measure these shower parameters. We tested two methods. The first relies on simple cuts, while the second is based on a multivariate analysis using the TMVA package, which improves individual cuts. The first method was applied to single simulated energies of 102, 103, 104 and 105 GeV to find adequate cuts. We found that Xmax, FWHM, Xstart and Nmax depend on the energy. Later we applied these energy-dependent cuts and other fixed cuts to a realistic sample, which consists of 104 signal events (photons) and 106 background events (protons) covering an energy range from 102 to 105 GeV with different spectra. Moreover, we introduced an energy smearing to simulate a detector energy reconstruction efficiency. The obtained result leaves 54% signal events and 12% background events. Applying the multivariate analysis TMVA, we found that the Boosted Decision Trees (BDT) method was the best for distinguishing signal from background. The result for a similar signal efficiency was 0:7% of background events. Finally using tighter cuts on the BDT to improve the significance results in 1 photon event for every 1000 protons. Given the initial ux proportion, it means a 103 background rejection capability. Thus the feasibility of gamma/hadron separation requires further improvement.
Trabajo de investigación
Lacki, Brian Cameron. "Cosmic Rays in Star-Forming Galaxies." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313437011.
Full text吳文謙 and Man-him Ng. "Searching for gamma-ray signals form pulsars and periodic signals fromthe galactic gamma-ray sources." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213509.
Full textNg, Man-him. "Searching for gamma-ray signals form pulsars and periodic signals from the galactic gamma-ray sources /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19667942.
Full textChadwick, Mary Paula. "Very high energy cosmic gamma rays from radio and X-ray pulsars." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/6720/.
Full textJames, Kory T. "High energry gamma-ray source search with SPASE-2." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 65 p, 2007. http://proquest.umi.com/pqdweb?did=1397914891&sid=16&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Full textGiller, Graham L. "The construction and analysis of a whole-sky map using underground muons." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386589.
Full textBooks on the topic "Cosmic rays; Gamma rays"
Shapiro, Maurice M., and John P. Wefel, eds. Cosmic Gamma Rays, Neutrinos, and Related Astrophysics. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0921-2.
Full textInternational Workshop on Extremely High Energy Cosmic Rays (2001 ICRR Kashiwa Campus, Japan). Proceedings of the International Workshop on Extremely High Energy Cosmic Rays: Experiments, theories and future direction, March 22-23, 2001 ICRR Kashiwa Campus, Japan. Edited by Teshima Masahiro 1958-, Sokolsky Pierre, Minowa M, and Nihon Butsuri Gakkai. Tokyo, Japan: Physical Society of Japan, 2001.
Find full textAstrophysics, International School of Cosmic-Ray. Towards the millennium in astrophysics: Problems and prospects : International School of Cosmic-Ray Astrophysics, 10th course, Erice, Italy, 16-23 June 1996. Singapore: World Scientific, 1998.
Find full text1915-, Shapiro Maurice M., Stanev Todor, and Wefel J. P, eds. Astrophysics at ultra-high energies: International School of Cosmic Ray Astrophysics, 15th course, Erice, Italy, 20-27 June 2006. Singapore: World Scientific, 2007.
Find full textVery high energy cosmic gamma radiation: A crucial window on the extreme universe. New Jersey: World Scientific, 2004.
Find full textAharonian, Felix A. Very high energy cosmic gamma radiation: A crucial window on the extreme universe. Singapore ; River Edge, NJ: World Scientific, 2005.
Find full textStecker, Floyd W. Photodisintegration of ultrahigh energy cosmic rays: A new determination. Greenbelt, Md: National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.
Find full textCHERBS, (1997 Snowmass Colo ). Conference on the High Energy Radiation Background in Space: Workshop record. Piscataway, NJ: IEEE, 1997.
Find full textCHERBS (1997 Snowmass, Colo.). Conference on the High Energy Radiation Background in Space. Greenbelt, Md: National Aeronautics and Space Administration, Goddard Space Flight Center, 1997.
Find full textKieda, David B. (David Basil) and Gondolo P, eds. Proceedings of the 2009 Snowbird Particle Astrophysics and Cosmology Workshop (SNOWPAC 2009): Proceedings of a workshop held at Snowbird, Utah, USA, 1-7 February 2009. San Francisco, Calif: Astronomical Society of the Pacific, 2010.
Find full textBook chapters on the topic "Cosmic rays; Gamma rays"
Moskalenko, Igor V., Andrew W. Strong, and Olaf Reimer. "Diffuse Gamma Rays." In Cosmic Gamma-Ray Sources, 279–310. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_12.
Full textFernández Barral, Alba. "Cosmic Rays and Gamma-Ray Astrophysics." In Extreme Particle Acceleration in Microquasar Jets and Pulsar Wind Nebulae with the MAGIC Telescopes, 3–16. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97538-2_1.
Full textZdziarski, Andrzej A., and Roland Svensson. "X-Rays and Gamma-Rays at Cosmological Distances." In Physical Processes in Hot Cosmic Plasmas, 383–94. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0545-0_22.
Full textStanev, Todor. "High energy neutrino and gamma-ray astronomy." In High Energy Cosmic Rays, 269–313. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-85148-6_10.
Full textStanev, Todor. "High Energy Neutrino and Gamma-Ray Astronomy." In High Energy Cosmic Rays, 281–332. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71567-0_10.
Full textHurley, K. "Cosmic Gamma-Ray Bursts." In Cosmic Gamma Rays, Neutrinos, and Related Astrophysics, 337–79. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0921-2_24.
Full textWhite, R. S. "Gamma Rays from Supernova 1987A." In Cosmic Rays, Supernovae and the Interstellar Medium, 167–76. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3158-2_12.
Full textde Cea del Pozo, E., D. F. Torres, and A. Y. Rodríguez Marrero. "Diffusion of Cosmic-Rays and Gamma-Ray Sources." In Astrophysics and Space Science Proceedings, 397. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11250-8_97.
Full textReimer, Olaf. "Clusters of Galaxies at High Energy Gamma-Rays." In Cosmic Gamma-Ray Sources, 261–78. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_11.
Full textDogiel, V. A. "The Cosmic-Ray Halo: Insight from Gamma Rays and Cosmic-Ray Observations." In The Interstellar Disk-Halo Connection in Galaxies, 175–86. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3228-2_20.
Full textConference papers on the topic "Cosmic rays; Gamma rays"
Lipari, Paolo. "Cosmic rays observations and gamma rays." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy. Author(s), 2017. http://dx.doi.org/10.1063/1.4968895.
Full textAhlers, Markus. "The cosmic triad: Cosmic rays, gamma-rays and neutrinos." In 5TH INTERNATIONAL WORKSHOP ON ACOUSTIC AND RADIO EEV NEUTRINO DETECTION ACTIVITIES: ARENA 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4807556.
Full textRachen, Jörg P., and P. Mészáros. "Cosmic rays and neutrinos from gamma-ray bursts." In GAMMA-RAY BURSTS. ASCE, 1998. http://dx.doi.org/10.1063/1.55402.
Full textPaul, Jacques. "X RAYS AND GAMMA RAYS FROM SPACE OBSERVATIONS." In 25th International Cosmic Ray Conference. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814529044_0011.
Full textAltamirano, A., G. Navarra, Carlos Javier Solano Salinas, Jose Bellido, David Wahl, and Oscar Saavedra. "Detectors of Cosmic Rays, Gamma Rays, and Neutrinos." In COSMIC RAYS AND ASTROPHYSICS: Proceedings of the 3rd School on Cosmic Rays and Astrophysics. AIP, 2009. http://dx.doi.org/10.1063/1.3141349.
Full textRando, Riccardo. "Gamma rays: direct observations." In 36th International Cosmic Ray Conference. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.358.0029.
Full textZhang, L., X. Chi, A. W. Wolfendale, and M. R. Issa. "Gamma rays and the origin of cosmic rays." In The second Compton symposium. AIP, 1994. http://dx.doi.org/10.1063/1.45642.
Full textJones, Lawrence W. "Results from GAMMA." In C2CR07: COLLIDERS TO COSMIC RAYS. AIP, 2007. http://dx.doi.org/10.1063/1.2775896.
Full textDonato, Fiorenza. "Cosmic rays and the diffuse gamma-ray emission." In 7th International Fermi Symposium. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.312.0134.
Full textScarsi, Livio. "Gamma ray bursts and extreme energy cosmic rays." In WORKSHOP ON OBSERVING GIANT COSMIC RAY AIR SHOWERS FROM >1020 eV Particles from Space. ASCE, 1998. http://dx.doi.org/10.1063/1.56132.
Full textReports on the topic "Cosmic rays; Gamma rays"
Poirier, J. Calculation of Atmospheric Muons from Cosmic Gamma Rays. Office of Scientific and Technical Information (OSTI), April 2005. http://dx.doi.org/10.2172/839832.
Full textMurase, Kohta, Kunihito Ioka, Shigehiro Nagataki, and Takashi Nakamura. High Energy Neutrinos and Cosmic-Rays From Low-Luminosity Gamma-Ray Bursts? Office of Scientific and Technical Information (OSTI), July 2006. http://dx.doi.org/10.2172/886791.
Full textTajima, T., and Y. Takahashi. Laboratory laser acceleration and high energy astrophysics: {gamma}-ray bursts and cosmic rays. Office of Scientific and Technical Information (OSTI), August 1998. http://dx.doi.org/10.2172/674811.
Full textRoesler, Stefan. Distributions of Secondary Muons at Sea Level from Cosmic Gamma Rays Below 10 TeV. Office of Scientific and Technical Information (OSTI), July 2001. http://dx.doi.org/10.2172/787214.
Full textFasso, Alberto. A Monte Carlo Calculation of Muon Flux at Ground Level from Primary Cosmic Gamma Rays. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/10509.
Full textPohl, M., Aous A. Abdo, A. Atoyan, Matthew G. Baring, John Francis Beacom, R. Blandford, Y. Butt, et al. Section on Supernova Remnants and Cosmic Rays of the White Paper on the Status and Future of Ground-Based Gamma-Ray Astronomy. Office of Scientific and Technical Information (OSTI), November 2011. http://dx.doi.org/10.2172/1029164.
Full textLipkin, H. J. Gamma rays for pedestrians. Office of Scientific and Technical Information (OSTI), May 1987. http://dx.doi.org/10.2172/6474138.
Full textChapline, George F., Andrew M. Glenn, Les F. Nakae, Iwona Pawelczak, Neal J. Snyderman, Steven A. Sheets, and Ron E. Wurtz. Time-Correlated Particles Produced by Cosmic Rays. Office of Scientific and Technical Information (OSTI), May 2015. http://dx.doi.org/10.2172/1251035.
Full textAguayo Navarrete, Estanislao, John L. Orrell, and Richard T. Kouzes. Monte Carlo Simulations of Cosmic Rays Hadronic Interactions. Office of Scientific and Technical Information (OSTI), April 2011. http://dx.doi.org/10.2172/1022429.
Full textMoskalenko, I. V. Hadronic Gamma Rays from Supernova Remnants. Office of Scientific and Technical Information (OSTI), June 2007. http://dx.doi.org/10.2172/908759.
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