New flux upper limits of diffuse TeV gamma rays from the galactic plane observed with the tibet air shower array

M. Amenomori, S. Ayabe, D. Chen, S. W. Cui, Danzengluobu, L. K. Ding, X. H. Ding, C. F. 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, J. Huang, Q. HuangH. Y. Jia, F. Kajino, K. Kasahara, Y. Katayose, C. Kato, K. Kawata, Labaciren, G. M. Le, J. Y. Li, 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, M. Sakata, T. Sasaki, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, M. Takita, Y. H. Tan, N. Tateyama, Shoji Torii, H. Tsuchiya, S. Udo, H. Wang, X. 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, Y. Zhang, Zhaxisangzhu, X. X. Zhou

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    The flux upper limits of the diffuse gamma rays, from the inner and outer Galactic planes, are found to be decreased by factors of 4.0∼3.6 for 3∼10 TeV, respectively, by using the simulation results of effective area ratios for gamma-ray and cosmic-ray induced showers in the Tibet air shower array. In our previous work, the flux upper limits were deduced only from the flux ratio of air showers generated by gamma rays versus cosmic rays. As a result the source electron spectral index for inverse Compton should be steeper than 2.2 and 2.1 for the inner and outer Galactic planes, respectively.

    Original languageEnglish
    Title of host publication29th International Cosmic Ray Conference, ICRC 2005
    PublisherTata Institute of Fundamental Research
    Pages43-46
    Number of pages4
    Volume4
    Publication statusPublished - 2005
    Event29th International Cosmic Ray Conference, ICRC 2005 - Pune
    Duration: 2005 Aug 32005 Aug 10

    Other

    Other29th International Cosmic Ray Conference, ICRC 2005
    CityPune
    Period05/8/305/8/10

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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