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Origin and physics of the highest energy cosmic rays: What can we learn from radio astronomy?

par Biermann, Peter P.L.;Maris, Ioana Codrina ; [et al.]
Référence 15th Biennial Course on Astrophysics at Ultra-High Energies(Code 102705: 20 June 2006 through 27 June 2006: Erice; Italy), The Science and Culture Series - Astrophysics; International School of Cosmic Ray Astrophysics 15th Course: Astrophysics at Ultra-High Energies, World Scientific Publishing Co. Pte Ltd, page (111-121)
Publication Publié, 2007

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Résumé :

Here in this lecture we will touch on two aspects, one the new radio methods to observe the effects of high energy particles, and second the role that radio galaxies play in helping us understand high energy cosmic rays. We will focus here on the second topic, and just review the latest developments in the first. Radio measurements of the geosynchrotron radiation produced by high energy cosmic ray particles entering the atmosphere of the Earth as well as radio Cerenkov radiation coming from interactions in the Moon are another path; radio observations of interactions in ice at the horizon in Antarctica is a related attempt. Radio galaxy hot spots are prime candidates to produce the highest energy cosmic rays, and the corresponding shock waves in relativistic jets emanating from nearly all black holes observed. We will review the arguments and the way to verify the ensuing predictions. This involves the definition of reliable samples of active sources, such as black holes, and galaxies active in star formation. The AUGER array will probably decide within the next few years, where the highest energy cosmic rays come from, and so frame the next quests, on very high energy neutrinos and perhaps other particles. Copyright © 2007 by World Scientific Publishing Co. Pvt. Ltd.