Probing the radio emission from air showers with polarization measurements
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...
| Autores principales: | , , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126276 |
| Aporte de: |
| id |
I19-R120-10915-126276 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave |
| spellingShingle |
Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave 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 Probing the radio emission from air showers with polarization measurements |
| topic_facet |
Física Polarization (waves) Magnetic field Optics Physics Air shower Radiation Earth's magnetic field Pierre auger observatory Computational physics Electric field Radio wave |
| 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. |
| format |
Articulo Articulo |
| author |
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_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_sort |
Dova, María Teresa |
| title |
Probing the radio emission from air showers with polarization measurements |
| 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 |
| publishDate |
2014 |
| url |
http://sedici.unlp.edu.ar/handle/10915/126276 |
| work_keys_str_mv |
AT dovamariateresa probingtheradioemissionfromairshowerswithpolarizationmeasurements AT gomezalbarracinflaviaalejandra probingtheradioemissionfromairshowerswithpolarizationmeasurements AT hansenpatriciamaria probingtheradioemissionfromairshowerswithpolarizationmeasurements AT jarnececiliagisele probingtheradioemissionfromairshowerswithpolarizationmeasurements AT mariazzianalisagabriela probingtheradioemissionfromairshowerswithpolarizationmeasurements AT morenojuancarlos probingtheradioemissionfromairshowerswithpolarizationmeasurements AT sciuttosergiojuan probingtheradioemissionfromairshowerswithpolarizationmeasurements AT wahlberghernanpablo probingtheradioemissionfromairshowerswithpolarizationmeasurements AT thepierreaugercollaboration probingtheradioemissionfromairshowerswithpolarizationmeasurements |
| bdutipo_str |
Repositorios |
| _version_ |
1764820450286764033 |