VARIATIONS OF THE MUON FLUX AT SEA LEVEL ASSOCIATED WITH INTERPLANETARY ICMEs AND COROTATING INTERACTION REGIONS

dc.creatorAugusto, CRA
dc.creatorKopenkin, V
dc.creatorNavia, CE
dc.creatorTsui, KH
dc.creatorShigueoka, H
dc.creatorFauth, AC
dc.creatorKemp, E
dc.creatorManganote, EJT
dc.creatorde Oliveira, MAL
dc.creatorMiranda, P
dc.creatorTicona, R
dc.creatorVelarde, A
dc.date2012
dc.date40483
dc.date2014-07-30T19:07:51Z
dc.date2015-11-26T16:28:07Z
dc.date2014-07-30T19:07:51Z
dc.date2015-11-26T16:28:07Z
dc.date.accessioned2018-03-28T23:09:07Z
dc.date.available2018-03-28T23:09:07Z
dc.identifierAstrophysical Journal. Iop Publishing Ltd, v. 759, n. 2, 2012.
dc.identifier0004-637X
dc.identifier1538-4357
dc.identifierWOS:000310911300066
dc.identifier10.1088/0004-637X/759/2/143
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73227
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73227
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269379
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionWe present the results of an ongoing survey on the association between the muon flux variation at ground level (3 m above sea level) registered by the Tupi telescopes (Niteri-Brazil, 22 degrees.9S, 43 degrees.2W, 3 m) and the Earth-directed transient disturbances in the interplanetary medium propagating from the Sun (such as coronal mass ejections (CME), and corotating interaction regions (CIRs)). Their location inside the South Atlantic Anomaly region enables the muon telescopes to achieve a low rigidity of response to primary and secondary charged particles. The present study is primarily based on experimental events obtained by the Tupi telescopes in the period from 2010 August to 2011 December. This time period corresponds to the rising phase of solar cycle 24. The Tupi events are studied in correlation with data obtained by space-borne detectors (SOHO, ACE, GOES). Identification of interplanetary structures and associated solar activity was based on the nomenclature and definitions given by the satellite observations, including an incomplete list of possible interplanetary shocks observed by the CELIAS/MTOF Proton Monitor on the Solar and Heliospheric Observatory (SOHO) spacecraft. Among 29 experimental events reported in the present analysis, there are 15 possibly associated with the CMEs and sheaths, and 3 events with the CIRs (forward or reverse shocks); the origin of the remaining 11 events has not been determined by the satellite detectors. We compare the observed time (delayed or anticipated) of the muon excess (positive or negative) signal on Earth (the Tupi telescopes) with the trigger time of the interplanetary disturbances registered by the satellites located at Lagrange point L1 (SOHO and ACE). The temporal correlation of the observed ground-based events with solar transient events detected by spacecraft suggests a real physical connection between them. We found that the majority of observed events detected by the Tupi experiment were delayed in relation to the satellite triggers. This result agrees with theoretical expectations. Our experimental data indicate that the Tupi experiment is able to add new information and can be complementary to other techniques designed to interpret the origin of some interplanetary disturbances observed by satellites.
dc.description759
dc.description2
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCNPq [306605/2009 - 0, 01300.077189/2008 - 6]
dc.descriptionFAPESP [2011/50193-4]
dc.descriptionFundao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ) [08458.009577/2011 - 81, E - 26/101.649/2011]
dc.languageen
dc.publisherIop Publishing Ltd
dc.publisherBristol
dc.publisherInglaterra
dc.relationAstrophysical Journal
dc.relationAstrophys. J.
dc.rightsaberto
dc.rightshttp://iopscience.iop.org/page/copyright
dc.sourceWeb of Science
dc.subjectcosmic rays
dc.subjectinterplanetary medium
dc.subjectmethods: data analysis
dc.subjectsolar-terrestrial relations
dc.subjectCoronal Mass Ejections
dc.subjectSolar-wind Streams
dc.subjectMajor Magnetic Storms
dc.subjectCosmic-ray Decreases
dc.subjectGeomagnetic-activity
dc.subjectForbush Decreases
dc.subjectTransient Events
dc.subjectRing Current
dc.subjectShock
dc.subjectDisturbances
dc.titleVARIATIONS OF THE MUON FLUX AT SEA LEVEL ASSOCIATED WITH INTERPLANETARY ICMEs AND COROTATING INTERACTION REGIONS
dc.typeArtículos de revistas


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