New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy
Abstract:
The amplitude of the Compton-Getting (CG) anisotropy contains the power-law index of the cosmic-ray energy spectrum. Based on this relation and using the Tibet air shower array data, we measure the cosmic-ray spectral index to be -3.03 ± 0.55stat± <0.62syst between 6 and 40 TeV, consistent with -2.7 from direct energy spectrum measurements. Potentially, this CG anisotropy analysis can be utilized to confirm the astrophysical origin of the "knee" against models for nonstandard hadronic interactions in the atmosphere. © 2008. The American Astronomi cal Society, All rights reserved.
Año de publicación:
2008
Keywords:
- solar system: general
- cosmic rays
Fuente:
scopus
Tipo de documento:
Article
Estado:
Acceso restringido
Áreas de conocimiento:
- Física de partículas
Áreas temáticas:
- Física moderna
- Astronomía y ciencias afines
- Cuerpos y fenómenos celestes específicos
Contribuidores:
Shibata M.
Labaciren
Hotta N.
Gao X.Y.
Jia H.Y.
Kasahara K.
Sakata M.
Lu H.
Bi X.J.
Onuma H.
Amenomori M.
Ouchi T.
Danzengluobu
Zhaxisangzhu
Yuan A.F.
Zhou X.X.
Li J.Y.
Tsuchiya H.
Ding L.K.
Huang J.
Cui S.W.
Zhang H.M.
Hibino K.
Udo S.
Xue L.
Lou Y.Q.
Yi Z.
Nanjo H.
Geng Q.X.
Huang Q.
Li A.F.
Mizutani K.
Wu H.R.
Ding X.H.
Tan Y.H.
Yan C.T.
Wang Y.
Hu H.B.
T. K. Sako
Yang X.C.
Guo H.W.
Kajino F.
Takita M.
Hu H.B.
Mu J.
Shirai T.
He M.
Ohnishi M.
Ren J.R.
Zhang X.Y.
Wang H.
Yamamoto Y.
Feng C.F.
Feng Z.Y.
Feng Z.Y.
Nishizawa M.
Wang X.
Yasue S.
Kato C.
Zhang J.L.
Yu G.C.
Meng X.R.
Lu S.L.
Yuda T.
He H.H.
Shiomi A.
Chen D.
Zhang Y.
Toru S.
Le G.M.
Tateyama N.
Zhang N.J.
Saito T.Y.
Ye Z.H.
Ozawa S.
Wang Y.G.
Katayose Y.
Saito T.
Wang B.S.
Munakata K.
Sugimoto H.
Ohta I.
Nagai A.
Fan C.
Kawata K.