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Geomagnetic origin of the radio emission from cosmic ray induced air showers observed by CODALEMA
- Source :
- Astroparticle Physics, Astroparticle Physics, Elsevier, 2010, 31 (3), pp.192. ⟨10.1016/j.astropartphys.2009.01.001⟩, Astroparticle Physics, 2009, 31 (3), pp.192-200. ⟨10.1016/j.astropartphys.2009.01.001⟩
- Publication Year :
- 2010
- Publisher :
- HAL CCSD, 2010.
-
Abstract
- The new setup of the CODALEMA experiment installed at the Radio Observatory in Nancay, France, is described. It includes broadband active dipole antennas and an extended and upgraded particle detector array. The latter gives access to the air shower energy, allowing us to compute the efficiency of the radio array as a function of energy. We also observe a large asymmetry in counting rates between showers coming from the North and the South in spite of the symmetry of the detector. The observed asymmetry can be interpreted as a signature of the geomagnetic origin of the air shower radio emission. A simple linear dependence of the electric field with respect to vxB is used which reproduces the angular dependencies of the number of radio events and their electric polarity.<br />Comment: 9 pages, 15 figures, 1 table
- Subjects :
- 96.40.-z
Physics::Instrumentation and Detectors
95.85.Ry
media_common.quotation_subject
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Cosmic ray
Astrophysics
01 natural sciences
Asymmetry
Particle detector
Ultra-High-Energy Cosmic Rays
Extensive Air showers
Observatory
0103 physical sciences
Radio detection
010306 general physics
media_common
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
010308 nuclear & particles physics
[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
Detector
Astrophysics::Instrumentation and Methods for Astrophysics
Astronomy and Astrophysics
Air shower
Earth's magnetic field
95.55.Jz
High Energy Physics::Experiment
Astrophysics - High Energy Astrophysical Phenomena
Radio wave
Subjects
Details
- Language :
- English
- ISSN :
- 09276505
- Database :
- OpenAIRE
- Journal :
- Astroparticle Physics, Astroparticle Physics, Elsevier, 2010, 31 (3), pp.192. ⟨10.1016/j.astropartphys.2009.01.001⟩, Astroparticle Physics, 2009, 31 (3), pp.192-200. ⟨10.1016/j.astropartphys.2009.01.001⟩
- Accession number :
- edsair.doi.dedup.....db8358b0ed01f617e11ef210fa173887
- Full Text :
- https://doi.org/10.1016/j.astropartphys.2009.01.001⟩