New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy

M. Amenomori, X. J. Bi, D. Chen, S. W. Cui, Danzengluobu, L. K. Ding, X. H. Ding, C. Fan, C. F. Feng, Zhaoyang Feng, Z. Y. Feng, X. Y. Gao, Q. X. Geng, H. W. Guo, H. H. He, M. He, K. Hibino, N. Hotta, Haibing Hu, H. B. Hu & 65 others J. Huang, Q. Huang, H. Y. Jia, F. Kajino, K. Kasahara, Y. Katayose, C. Kato, K. Kawata, Labaciren, G. M. Le, A. F. Li, J. Y. Li, Y. Q. Lou, H. Lu, S. L. Lu, X. R. Meng, K. Mizutani, J. Mu, K. Munakata, A. Nagai, H. Nanjo, M. Nishizawa, M. Ohnishi, I. Ohta, H. Onuma, T. Ouchi, Shunsuke Ozawa, J. R. Ren, T. Saito, T. Y. Saito, M. Sakata, T. K. Sako, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, M. Takita, Y. H. Tan, N. Tateyama, S. Toru, H. Tsuchiya, S. Udo, B. Wang, H. Wang, X. Wang, Y. Wang, Y. G. Wang, H. R. Wu, L. Xue, Y. Yamamoto, C. T. Yan, X. C. Yang, S. Yasue, Z. H. Ye, G. C. Yu, A. F. Yuan, T. Yuda, H. M. Zhang, J. L. Zhang, N. J. Zhang, X. Y. Zhang, Y. Zhang, Zhang Yi, Zhaxisangzhu, X. X. Zhou

Research output: Contribution to journalArticle

10 Citations (Scopus)

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.

Original languageEnglish
JournalAstrophysical Journal
Volume672
Issue number1 PART 2
DOIs
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

cosmic ray
cosmic rays
anisotropy
energy spectra
Tibet
cosmic ray showers
energy
astrophysics
power law
atmospheres
atmosphere
air
interactions
index
analysis

Keywords

  • Cosmic rays
  • Solar system: general

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Amenomori, M., Bi, X. J., Chen, D., Cui, S. W., Danzengluobu, Ding, L. K., ... Zhou, X. X. (2008). New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy. Astrophysical Journal, 672(1 PART 2). https://doi.org/10.1086/525526

New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy. / Amenomori, M.; Bi, X. J.; Chen, D.; Cui, S. W.; Danzengluobu; Ding, L. K.; Ding, X. H.; Fan, C.; Feng, C. F.; Feng, Zhaoyang; Feng, Z. Y.; Gao, X. Y.; Geng, Q. X.; Guo, H. W.; He, H. H.; He, M.; Hibino, K.; Hotta, N.; Hu, Haibing; Hu, H. B.; Huang, J.; Huang, Q.; Jia, H. Y.; Kajino, F.; Kasahara, K.; Katayose, Y.; Kato, C.; Kawata, K.; Labaciren; Le, G. M.; Li, A. F.; Li, J. Y.; Lou, Y. Q.; Lu, H.; Lu, S. L.; Meng, X. R.; Mizutani, K.; Mu, J.; Munakata, K.; Nagai, A.; Nanjo, H.; Nishizawa, M.; Ohnishi, M.; Ohta, I.; Onuma, H.; Ouchi, T.; Ozawa, Shunsuke; Ren, J. R.; Saito, T.; Saito, T. Y.; Sakata, M.; Sako, T. K.; Shibata, M.; Shiomi, A.; Shirai, T.; Sugimoto, H.; Takita, M.; Tan, Y. H.; Tateyama, N.; Toru, S.; Tsuchiya, H.; Udo, S.; Wang, B.; Wang, H.; Wang, X.; Wang, Y.; Wang, Y. G.; Wu, H. R.; Xue, L.; Yamamoto, Y.; Yan, C. T.; Yang, X. C.; Yasue, S.; Ye, Z. H.; Yu, G. C.; Yuan, A. F.; Yuda, T.; Zhang, H. M.; Zhang, J. L.; Zhang, N. J.; Zhang, X. Y.; Zhang, Y.; Yi, Zhang; Zhaxisangzhu; Zhou, X. X.

In: Astrophysical Journal, Vol. 672, No. 1 PART 2, 2008.

Research output: Contribution to journalArticle

Amenomori, M, Bi, XJ, Chen, D, Cui, SW, Danzengluobu, Ding, LK, Ding, XH, Fan, C, Feng, CF, Feng, Z, Feng, ZY, Gao, XY, Geng, QX, Guo, HW, He, HH, He, M, Hibino, K, Hotta, N, Hu, H, Hu, HB, Huang, J, Huang, Q, Jia, HY, Kajino, F, Kasahara, K, Katayose, Y, Kato, C, Kawata, K, Labaciren, Le, GM, Li, AF, Li, JY, Lou, YQ, Lu, H, Lu, SL, Meng, XR, Mizutani, K, Mu, J, Munakata, K, Nagai, A, Nanjo, H, Nishizawa, M, Ohnishi, M, Ohta, I, Onuma, H, Ouchi, T, Ozawa, S, Ren, JR, Saito, T, Saito, TY, Sakata, M, Sako, TK, Shibata, M, Shiomi, A, Shirai, T, Sugimoto, H, Takita, M, Tan, YH, Tateyama, N, Toru, S, Tsuchiya, H, Udo, S, Wang, B, Wang, H, Wang, X, Wang, Y, Wang, YG, Wu, HR, Xue, L, Yamamoto, Y, Yan, CT, Yang, XC, Yasue, S, Ye, ZH, Yu, GC, Yuan, AF, Yuda, T, Zhang, HM, Zhang, JL, Zhang, NJ, Zhang, XY, Zhang, Y, Yi, Z, Zhaxisangzhu & Zhou, XX 2008, 'New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy', Astrophysical Journal, vol. 672, no. 1 PART 2. https://doi.org/10.1086/525526
Amenomori, M. ; Bi, X. J. ; Chen, D. ; Cui, S. W. ; Danzengluobu ; Ding, L. K. ; Ding, X. H. ; Fan, C. ; Feng, C. F. ; Feng, Zhaoyang ; Feng, Z. Y. ; Gao, X. Y. ; Geng, Q. X. ; Guo, H. W. ; He, H. H. ; He, M. ; Hibino, K. ; Hotta, N. ; Hu, Haibing ; Hu, H. B. ; Huang, J. ; Huang, Q. ; Jia, H. Y. ; Kajino, F. ; Kasahara, K. ; Katayose, Y. ; Kato, C. ; Kawata, K. ; Labaciren ; Le, G. M. ; Li, A. F. ; Li, J. Y. ; Lou, Y. Q. ; Lu, H. ; Lu, S. L. ; Meng, X. R. ; Mizutani, K. ; Mu, J. ; Munakata, K. ; Nagai, A. ; Nanjo, H. ; Nishizawa, M. ; Ohnishi, M. ; Ohta, I. ; Onuma, H. ; Ouchi, T. ; Ozawa, Shunsuke ; Ren, J. R. ; Saito, T. ; Saito, T. Y. ; Sakata, M. ; Sako, T. K. ; Shibata, M. ; Shiomi, A. ; Shirai, T. ; Sugimoto, H. ; Takita, M. ; Tan, Y. H. ; Tateyama, N. ; Toru, S. ; Tsuchiya, H. ; Udo, S. ; Wang, B. ; Wang, H. ; Wang, X. ; Wang, Y. ; Wang, Y. G. ; Wu, H. R. ; Xue, L. ; Yamamoto, Y. ; Yan, C. T. ; Yang, X. C. ; Yasue, S. ; Ye, Z. H. ; Yu, G. C. ; Yuan, A. F. ; Yuda, T. ; Zhang, H. M. ; Zhang, J. L. ; Zhang, N. J. ; Zhang, X. Y. ; Zhang, Y. ; Yi, Zhang ; Zhaxisangzhu ; Zhou, X. X. / New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy. In: Astrophysical Journal. 2008 ; Vol. 672, No. 1 PART 2.
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T1 - New estimation of the spectral index of high-energy cosmic rays as determined by the compton-getting anisotropy

AU - Amenomori, M.

AU - Bi, X. J.

AU - Chen, D.

AU - Cui, S. W.

AU - Danzengluobu,

AU - Ding, L. K.

AU - Ding, X. H.

AU - Fan, C.

AU - Feng, C. F.

AU - Feng, Zhaoyang

AU - Feng, Z. Y.

AU - Gao, X. Y.

AU - Geng, Q. X.

AU - Guo, H. W.

AU - He, H. H.

AU - He, M.

AU - Hibino, K.

AU - Hotta, N.

AU - Hu, Haibing

AU - Hu, H. B.

AU - Huang, J.

AU - Huang, Q.

AU - Jia, H. Y.

AU - Kajino, F.

AU - Kasahara, K.

AU - Katayose, Y.

AU - Kato, C.

AU - Kawata, K.

AU - Labaciren,

AU - Le, G. M.

AU - Li, A. F.

AU - Li, J. Y.

AU - Lou, Y. Q.

AU - Lu, H.

AU - Lu, S. L.

AU - Meng, X. R.

AU - Mizutani, K.

AU - Mu, J.

AU - Munakata, K.

AU - Nagai, A.

AU - Nanjo, H.

AU - Nishizawa, M.

AU - Ohnishi, M.

AU - Ohta, I.

AU - Onuma, H.

AU - Ouchi, T.

AU - Ozawa, Shunsuke

AU - Ren, J. R.

AU - Saito, T.

AU - Saito, T. Y.

AU - Sakata, M.

AU - Sako, T. K.

AU - Shibata, M.

AU - Shiomi, A.

AU - Shirai, T.

AU - Sugimoto, H.

AU - Takita, M.

AU - Tan, Y. H.

AU - Tateyama, N.

AU - Toru, S.

AU - Tsuchiya, H.

AU - Udo, S.

AU - Wang, B.

AU - Wang, H.

AU - Wang, X.

AU - Wang, Y.

AU - Wang, Y. G.

AU - Wu, H. R.

AU - Xue, L.

AU - Yamamoto, Y.

AU - Yan, C. T.

AU - Yang, X. C.

AU - Yasue, S.

AU - Ye, Z. H.

AU - Yu, G. C.

AU - Yuan, A. F.

AU - Yuda, T.

AU - Zhang, H. M.

AU - Zhang, J. L.

AU - Zhang, N. J.

AU - Zhang, X. Y.

AU - Zhang, Y.

AU - Yi, Zhang

AU - Zhaxisangzhu,

AU - Zhou, X. X.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

KW - Cosmic rays

KW - Solar system: general

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UR - http://www.scopus.com/inward/citedby.url?scp=67649562858&partnerID=8YFLogxK

U2 - 10.1086/525526

DO - 10.1086/525526

M3 - Article

VL - 672

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1 PART 2

ER -