Multi messenger astronomy and CTA: TeV cosmic rays and electrons |
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| Institution: | 1. INAF-IASFBO, Via Gobetti 101, Bologna I-40126, Italy;2. Dipartimento di Fisica e Astronomia, Università degli Studi di Bologna, viale Berti Pichat 6/2, Bologna I-40127, Italy;3. Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn D-53121, Germany;4. INAF–Osservatorio Astronomico di Bologna, Via Ranzani 1, Bologna I-40127, Italy;5. Institut de Recherche en Astrophysique et Planétologie, 9 avenue Colonel-Roche, Toulouse, Cedex 4 F-31028, France |
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| Abstract: | Cosmic rays are a sample of solar, galactic and extragalactic matter. Their origin and properties are one of the most intriguing question in modern astrophysics. The most energetic events and active objects in the Universe: supernovae explosion, pulsars, relativistic jets, active galactic nuclei, have been proposed as sources of cosmic rays although unambiguous evidences have still to be found. Electrons, while comprising ～1% of the cosmic radiation, have unique features providing important information regarding the origin and propagation of cosmic rays in the Galaxy that is not accessible from the study of the cosmic-ray nuclear components due to their differing energy-loss processes. In this paper we will analyse, discussing the experimental uncertainties and challenges, the most recent measurements on cosmic-ray nuclei and, in particular, electrons with energies from tens of GeV into the TeV region. |
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