Probing the radio emission from air showers with polarization measurements
- Autores
- Dova, María Teresa; Gómez Albarracín, Flavia Alejandra; Hansen, Patricia María; Jarne, Cecilia Gisele; Mariazzi, Analisa Gabriela; Moreno, Juan Carlos; Sciutto, Sergio Juan; Wahlberg, Hernán Pablo; The Pierre Auger Collaboration
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The direction of the electric field induced by this emission process depends only on the local magnetic field vector and on the incoming direction of the air shower. We report on measurements of the electric field vector where, in addition to this geomagnetic component, another component has been observed that cannot be described by the geomagnetic emission process. The data provide strong evidence that the other electric field component is polarized radially with respect to the shower axis, in agreement with predictions made by Askaryan who described radio emission from particle showers due to a negative charge excess in the front of the shower. Our results are compared to calculations which include the radiation mechanism induced by this charge-excess process.
Instituto de Física La Plata - Materia
-
Física
Polarization (waves)
Magnetic field
Optics
Physics
Air shower
Radiation
Earth's magnetic field
Pierre auger observatory
Computational physics
Electric field
Radio wave - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/126276
Ver los metadatos del registro completo
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Probing the radio emission from air showers with polarization measurementsDova, María TeresaGómez Albarracín, Flavia AlejandraHansen, Patricia MaríaJarne, Cecilia GiseleMariazzi, Analisa GabrielaMoreno, Juan CarlosSciutto, Sergio JuanWahlberg, Hernán PabloThe Pierre Auger CollaborationFísicaPolarization (waves)Magnetic fieldOpticsPhysicsAir showerRadiationEarth's magnetic fieldPierre auger observatoryComputational physicsElectric fieldRadio waveThe emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The direction of the electric field induced by this emission process depends only on the local magnetic field vector and on the incoming direction of the air shower. We report on measurements of the electric field vector where, in addition to this geomagnetic component, another component has been observed that cannot be described by the geomagnetic emission process. The data provide strong evidence that the other electric field component is polarized radially with respect to the shower axis, in agreement with predictions made by Askaryan who described radio emission from particle showers due to a negative charge excess in the front of the shower. Our results are compared to calculations which include the radiation mechanism induced by this charge-excess process.Instituto de Física La Plata2014-03-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126276enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/issn/1550-2368info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.89.052002info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:22Zoai:sedici.unlp.edu.ar:10915/126276Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:23.122SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Probing the radio emission from air showers with polarization measurements |
| title |
Probing the radio emission from air showers with polarization measurements |
| spellingShingle |
Probing the radio emission from air showers with polarization measurements Dova, María Teresa Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave |
| title_short |
Probing the radio emission from air showers with polarization measurements |
| title_full |
Probing the radio emission from air showers with polarization measurements |
| title_fullStr |
Probing the radio emission from air showers with polarization measurements |
| title_full_unstemmed |
Probing the radio emission from air showers with polarization measurements |
| title_sort |
Probing the radio emission from air showers with polarization measurements |
| dc.creator.none.fl_str_mv |
Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Moreno, Juan Carlos Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author |
Dova, María Teresa |
| author_facet |
Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Moreno, Juan Carlos Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author_role |
author |
| author2 |
Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Moreno, Juan Carlos Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author2_role |
author author author author author author author author |
| dc.subject.none.fl_str_mv |
Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave |
| topic |
Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave |
| dc.description.none.fl_txt_mv |
The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The direction of the electric field induced by this emission process depends only on the local magnetic field vector and on the incoming direction of the air shower. We report on measurements of the electric field vector where, in addition to this geomagnetic component, another component has been observed that cannot be described by the geomagnetic emission process. The data provide strong evidence that the other electric field component is polarized radially with respect to the shower axis, in agreement with predictions made by Askaryan who described radio emission from particle showers due to a negative charge excess in the front of the shower. Our results are compared to calculations which include the radiation mechanism induced by this charge-excess process. Instituto de Física La Plata |
| description |
The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The direction of the electric field induced by this emission process depends only on the local magnetic field vector and on the incoming direction of the air shower. We report on measurements of the electric field vector where, in addition to this geomagnetic component, another component has been observed that cannot be described by the geomagnetic emission process. The data provide strong evidence that the other electric field component is polarized radially with respect to the shower axis, in agreement with predictions made by Askaryan who described radio emission from particle showers due to a negative charge excess in the front of the shower. Our results are compared to calculations which include the radiation mechanism induced by this charge-excess process. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014-03-14 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/126276 |
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http://sedici.unlp.edu.ar/handle/10915/126276 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/1550-7998 info:eu-repo/semantics/altIdentifier/issn/1550-2368 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.89.052002 |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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