Magnetic fields in the galactic Universe,as observed in supershells,galaxies, intergalactic and cosmic realms |
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| Authors: | Jacques P Vallée |
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| Institution: | 1. Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa, Chiba 277-8582, Japan;2. Kavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan;3. Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, Japan;4. Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany;1. Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo André, SP, Brazil;2. AHEP Group, Institut de Física Corpuscular – C.S.I.C./Universitat de València, Parc Científic de Paterna, C/ Catedrático José Beltrán, 2, E-46980 Paterna (Valencia), Spain;3. Consejo Nacional de Ciencia y Tecnología, Avenida Insurgentes Sur 1582. Colonia Crédito Constructor, Alcaldía Benito Juárez, C.P. 03940, Ciudad de México, Mexico;4. Departamento de Física, DCI, Campus León, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, C.P. 37150, León, Guanajuato, Mexico;1. INAF – Osservatorio Astronomico di Brera, Via E. Bianchi 46, I-23807 Merate, Italy;2. INFN, Sezione di Pavia, Via A. Bassi 6, I-27100 Pavia, Italy;3. Dipartimento di Fisica, Università dell''Insubria, Via Valleggio 11, I-22100 Como, Italy |
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| Abstract: | Here I present a survey of magnetic fields in large objects, from the interstellar supershells (10 pc) up to the edge of the Universe (near a redshift z of 10), with an emphasis on discoveries made in the last decade, be they through particle astronomy or electromagnetic astronomy.For each type of object, the basic observational properties are summarized, and the best theoretical scenario which accounts for the large body of observations is discussed.The strength of these large-scale fields can vary from mGauss to μGauss. Magnetism acts as a tracer of the dynamical histories of cosmological and intracluster events, it guides the motion of the interstellar ionised gas, and it aligns the charged dust particles. |
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