Published January 2011
| Published
Journal Article
Open
The Pierre Auger Observatory scaler mode for the study of solar activity modulation of galactic cosmic rays
Abstract
Since data-taking began in January 2004, the Pierre Auger Observatory has been recording the count rates of low energy secondary cosmic ray particles for the self-calibration of the ground detectors of its surface detector array. After correcting for atmospheric effects, modulations of galactic cosmic rays due to solar activity and transient events are observed. Temporal variations related with the activity of the heliosphere can be determined with high accuracy due to the high total count rates. In this study, the available data are presented together with an analysis focused on the observation of Forbush decreases, where a strong correlation with neutron monitor data is found.
Additional Information
© 2011 IOP Publishing Ltd and SISSA. Received: August 17, 2010. Revised: November 24, 2010. Accepted: December 1, 2010. Published: January 12, 2011. The successful installation and commissioning of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are grateful to Prof. Enrique G. Cordaro and the Observatorio Radiaciόn Cόsmica of the Universidad de Chile, who kindly provided the neutron monitor data of Los Cerrillos Observatory. We are very grateful to the following agencies and organizations for financial support: Comisiόn Nacional de Energía Atόmica, Fundaciόn Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnolόgico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministério de Ciência e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB300100801 and KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l'Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Astrofisica (INAF), Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30 and N N202 207238, Poland; Fundação para a Ciência e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educaciόn de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovaciόn and Consolider-Ingenio 2010 (CPAN), Generalitat Valenciana, Junta de Andalucía, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC / HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.Attached Files
Published - Abreu2011p14303J_Instrum.pdf
Files
Abreu2011p14303J_Instrum.pdf
Files
(699.9 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:85794e5aa004145faf6582ce0b9561eb
|
699.9 kB | Preview Download |
Additional details
- Eprint ID
- 24204
- Resolver ID
- CaltechAUTHORS:20110624-112900240
- Comisión Nacional de Energía Atómica
- Fundación Antorchas
- Gobierno De La Provincia de Mendoza
- Municipalidad de Malargüe
- NDM Holdings and Valle Las Leñas, Argentina
- Australian Research Council
- Conselho Nacional de Desenvolvimento Científicico e Tecnológico (CNPq)
- Financiadora de Estudos e Projetos (FINEP)
- Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Ministério da Ciência e Tecnologia (MCT) (Brazil)
- AV0Z10100502
- AVCR (Czech Republic)
- AV0Z10100522
- AVCR (Czech Republic)
- GAAV KJB300100801
- AVCR (Czech Republic)
- KJB100100904
- AVCR (Czech Republic)
- MSMT-CR LA08016
- AVCR (Czech Republic)
- LC527
- AVCR (Czech Republic)
- 1M06002
- AVCR (Czech Republic)
- MSM0021620859,
- AVCR (Czech Republic)
- Centre de Calcul IN2P3/CNRS
- Centre National de la Recherche Scientifique (CNRS)
- Conseil Régional Ile-de-France
- Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS) (France)
- Département Sciences de l'Univers , (SDU-INSU/CNRS), France
- Bundesministerium fur Bildung und Forschung (BMBF) (Germany)
- Deutsche Forschungsgemeinschaft (DFG)
- Finanzministerium Baden-Württemberg
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
- Ministerium für Wissenschaft und Forschung
- Nordrhein-Westfalen
- Ministerium für Wissenschaft und Forschung
- Forschung und Kunst Baden-Württemberg (Germany)
- Istituto Nazionale di Fisica Nucleare (INFN)
- Istituto Nazionale di Astrofisica (INAF)
- Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR) (Italy)
- Consejo Nacional de Ciencia y Tecnología (CONACYT) (Mexico)
- Ministerie van Onderwijs
- Cultuur en Wetenschap
- Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
- 1 P03 D 014 30
- Ministry of Science and Higher Education (Poland)
- N N202 207238
- Ministry of Science and Higher Education (Poland)
- Fundação para a Ciência e a Tecnologia (Portugal)
- Ministry for Higher Education, Science, and Technology
- Slovenian Research Agency (Slovenia)
- Comunidad de Madrid
- Consejería de Educación de la Comunidad de Castilla La Mancha
- FEDER funds
- Ministerio de Ciencia e Innovación and Consolider-Ingenio 2010 (CPAN)
- Generalitat Valenciana
- Junta de Andalucía
- Xunta de Galicia (Spain)
- Science and Technology Facilities Council (United Kingdom)
- DE-AC02-07CH11359
- Department of Energy (DOE)
- DE-FR02-04ER41300
- Department of Energy (DOE)
- 0450696
- NSF
- Grainger Foundation (USA)
- ALFA-EC / HELEN
- MEIF-CT-2005-025057
- European Union 6th Framework Program
- PIEF-GA-2008- 220240
- European Union 7th Framework Program
- United Nations Educational, Scientific and Cultural Organization (UNESCO)
- Created
-
2011-06-24Created from EPrint's datestamp field
- Updated
-
2022-07-12Created from EPrint's last_modified field