Mean Interplanetary Magnetic Field Measurement Using the ARGO-YBJ Experiment

G. Aielli , C. Bacci , B. Bartoli , P. Bernardini , X.J. Bi , C. Bleve , P. Branchini , A. Budano

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S. Bussino A.K. Calabrese Melcarne P. Camarri Z. Cao A. Cappa R. Cardarelli S. Catalanotti C. Cattaneo P. Celio S.Z. Chen T.L. Chen Y. Chen P. Creti S.W. Cui B.Z. Dai G. D'Al\'i Staiti Danzengluobu M. Dattoli I. De Mitri B. D'Ettorre Piazzoli M. De Vincenzi T. Di Girolamo X.H. Ding G. Di Sciascio C.F. Feng Z.Y. Feng Zhenyong Feng F. Galeazzi P. Galeotti R. Gargana Q.B. Gou Y.Q. Guo H.H. He Haibing Hu Hongbo Hu Q. Huang M. Iacovacci R. Iuppa I. James H.Y. Jia Labaciren H.J. Li J.Y. Li X.X. Li B. Liberti G. Liguori C. Liu C.Q. Liu M.Y. Liu J. Liu H. Lu X. H. Ma G. Mancarella S.M. Mari G.Marsella D. Martello S. Mastroianni X.R. Meng P. Montini C.C. Ning A. Pagliaro M. Panareo L. Perrone P. Pistilli X.B. Qu E. Rossi F. Ruggieri L. Saggese P. Salvini R. Santonico P.R. Shen X.D. Sheng F. Shi C. Stanescu A. Surdo Y.H. Tan P. Vallania S. Vernetto C. Vigorito B. Wang H. Wang C.Y. Wu H.R. Wu Z.G. Yao B. Xu L. Xue Y.X. Yan Q.Y. Yang X.C. Yang A.F. Yuan M. Zha H.M. Zhang Jilong Zhang Jianli Zhang L. Zhang P. Zhang X.Y. Zhang Y. Zhang Zhaxisangzhu Zhaxiciren X.X. Zhou F.R. Zhu Q.Q. Zhu G. Zizzi (The ARGO-YBJ Collaboration)

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classification 🌌 astro-ph.SR astro-ph.HEhep-ex

keywords cosmicfieldargo-ybjearthexperimentmagneticparticlesshadow

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The sun blocks cosmic ray particles from outside the solar system, forming a detectable shadow in the sky map of cosmic rays detected by the ARGO-YBJ experiment in Tibet. Because the cosmic ray particles are positive charged, the magnetic field between the sun and the earth deflects them from straight trajectories and results in a shift of the shadow from the true location of the sun. Here we show that the shift measures the intensity of the field which is transported by the solar wind from the sun to the earth.

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Mean Interplanetary Magnetic Field Measurement Using the ARGO-YBJ Experiment

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