Radioelectric fields from cosmic-ray air showers at large impact parameters
| Autor: | J. Lamblin, S. Valcares, Thierry Gousset |
|---|---|
| Přispěvatelé: | Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Physics
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE] 010308 nuclear & particles physics Astrophysics::High Energy Astrophysical Phenomena [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE] Astronomy and Astrophysics Cosmic ray Astrophysics 01 natural sciences Pulse (physics) Computational physics Coherent radio emission:Radio detection:Extensive air showers:Cosmic-rays Transverse plane Electric field 0103 physical sciences Physical Sciences Cutoff Impact parameter Current (fluid) 010303 astronomy & astrophysics Radio detection ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Astroparticle Physics Astroparticle Physics, Elsevier, 2009, 31, pp.52-62. ⟨10.1016/J.ASTROPARTPHYS.2008.11.005⟩ Astroparticle Physics, Elsevier, 2009, 31 (1), pp.52. ⟨10.1016/j.astropartphys.2008.11.005⟩ |
| ISSN: | 0927-6505 |
| DOI: | 10.1016/J.ASTROPARTPHYS.2008.11.005⟩ |
| Popis: | We discuss electric fields generated by cosmic-ray air showers at large impact parameters b. An approximation relevant to this situation is given. The formulation makes explicit the relationship between the shower profile and the radio pulse shapes at large b, putting forward one important observational consequence, namely the decrease of the high-frequency cutoff ν c ∝ 1 / b 2 when the impact parameter increases. The approximation is also used to give a detailed comparison between two emission models, the geosynchrotron model and the transverse current model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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