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Arganda, E. and Arqueros Martínez, Fernando and Blanco Ramos, Francisco and García Pinto, Diego and Monasor, M. and Ortiz Ramis, Montserrat and Ros, G. and Rosado Vélez, Jaime and Vázquez Peñas, José Ramón (2010) A study of the effect of molecular and aerosol conditions in the atmosphere on air fluorescence measurements at the Pierre Auger Observatory. Astroparticle physics, 33 (2). pp. 108-129. ISSN 0927-6505
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Official URL: http://dx.doi.org/10.1016/j.astropartphys.2009.12.005
Abstract
The air fluorescence detector of the Pierre Auger Observatory is designed to perforin calorimetric measurements of extensive air showers created by Cosmic rays of above 10(18) eV. To correct these measurements for the effects introduced by atmospheric fluctuations, the Observatory contains a group Of monitoring instruments to record atmospheric conditions across the detector site, ail area exceeding 3000 km(2). The atmospheric data are used extensively in the reconstruction of air showers, and are particularly important for the correct determination of shower energies and the depths of shower maxima. This paper contains a summary of the molecular and aerosol conditions measured at the Pierre Auger Observatory since the start of regular operations in 2004, and includes a discussion of the impact of these measurements oil air shower reconstructions. Between 10(18) and 10(20) eV, the systematic Uncertainties due to all atmospheric effects increase from 4% to 8% in measurements of shower energy, and 4 g cm(-2) to 8 g cm(-2) in measurements of the shower maximum. (C) 2010 Elsevier B.V. All rights reserved.
Item Type: | Article |
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Additional Information: | © 2010 Elsevier Science BV. |
Uncontrolled Keywords: | Cosmic ray showers; Multiple scattering; Angstrom exponent; Surface detector; Cross sections; Light emission; Dependence; Nitrogen; Reconstruction; Electrons. |
Subjects: | Sciences > Physics > Nuclear physics |
ID Code: | 39377 |
Deposited On: | 11 Oct 2016 17:44 |
Last Modified: | 10 Dec 2018 14:58 |
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