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Study of cosmic gamma rays
Štefánik, Stanislav ; Nedbal, Dalibor (advisor) ; Nosek, Dalibor (referee)
Title: Study of cosmic gamma rays Author: Stanislav Štefánik Department: Institute of Particle and Nuclear Physics Supervisor: Mgr. Dalibor Nedbal, Ph.D. Supervisor's e-mail address: nedbal@ipnp.troja.mff.cuni.cz Abstract: This thesis is focused on elementary knowledge of cosmic γ ray physics. In the introduction there is provided history overview of astroparticle physics, cosmic ray features and interactions are discussed. The remainder of the thesis deals with detection of cosmic γ rays with emphasis put on Čerenkov method of air shower detection. In this context the H.E.S.S. experiment in Namibia is presented and the technique of data acquisition and processing is described as well. Result of this thesis is to understand modern analysis methods used for study of cosmic rays as well as application of this method on simulated and real data acquired by H.E.S.S. Keywords: cosmic rays, gamma rays, astroparticle physics, H.E.S.S.
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Highest energy cosmic ray propagation
Novotný, Vladimír ; Nosek, Dalibor (advisor) ; Nedbal, Dalibor (referee)
Research of the highest energy cosmic rays is in the middle of the interest of theoretical and experimental physics because energies that it can reach is up to nine order of magnitude higher than energies that can be reached at present accelerators. In this work we study propagation of the most energetic cosmic particles. Interactions with the cosmic background radiation and magnetic fields play the prime role of their propagation. Simulations of proton energy losses as well as simulations of energy spectra of secondary electromagnetic components and secondary neutrinos were performed. Also simulations of proton propagation in extragalactic magnetic fields were done. Program CRPropa was used to execute simulations.
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Study of cosmic gamma rays
Štefánik, Stanislav ; Nedbal, Dalibor (advisor) ; Nosek, Dalibor (referee)
Title: Study of cosmic gamma rays Author: Stanislav Štefánik Department: Institute of Particle and Nuclear Physics Supervisor: Mgr. Dalibor Nedbal, Ph.D. Supervisor's e-mail address: nedbal@ipnp.troja.mff.cuni.cz Abstract: This thesis is focused on elementary knowledge of cosmic γ ray physics. In the introduction there is provided history overview of astroparticle physics, cosmic ray features and interactions are discussed. The remainder of the thesis deals with detection of cosmic γ rays with emphasis put on Čerenkov method of air shower detection. In this context the H.E.S.S. experiment in Namibia is presented and the technique of data acquisition and processing is described as well. Result of this thesis is to understand modern analysis methods used for study of cosmic rays as well as application of this method on simulated and real data acquired by H.E.S.S. Keywords: cosmic rays, gamma rays, astroparticle physics, H.E.S.S.
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Highest energy cosmic ray propagation
Novotný, Vladimír ; Nosek, Dalibor (advisor) ; Nedbal, Dalibor (referee)
Research of the highest energy cosmic rays is in the middle of the interest of theoretical and experimental physics because energies that it can reach is up to nine order of magnitude higher than energies that can be reached at present accelerators. In this work we study propagation of the most energetic cosmic particles. Interactions with the cosmic background radiation and magnetic fields play the prime role of their propagation. Simulations of proton energy losses as well as simulations of energy spectra of secondary electromagnetic components and secondary neutrinos were performed. Also simulations of proton propagation in extragalactic magnetic fields were done. Program CRPropa was used to execute simulations.
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