Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array

M. Amenomori; S. Ayabe; P. Y. Cao; Danzengluobu; L. K. Ding; Z. Y. Feng; Y. Fu; H. W. Guo; M. He; K. Hibino; N. Hotta; Q. Huang; A. X. Huo; K. Izu; H. Y. Jia; F. Kajino; K. Kasahara; Y. Katayose; Labaciren; J. Y. Li; H. Lu; S. L. Lu; G. X. Luo; X. R. Meng; K. Mizutani; J. Mu; H. Nanjo; M. Nishizawa; M. Ohnishi; I. Ohta; T. Ouchi; J. R. Ren; T. Saito; M. Sakata; T. Sasaki; Z. Z. Shi; M. Shibata; A. Shiomi; T. Shirai; H. Sugimoto; K. Taira; Y. H. Tan; N. Tateyama; Shoji Torii; T. Utsugi; C. R. Wang; H. Wang; X. W. Xu; Y. Yamamoto; G. C. Yu; A. F. Yuan; T. Yuda; C. S. Zhang; H. M. Zhang; J. L. Zhang; N. J. Zhang; X. Y. Zhang; Zhaxisangzhu; Zhaxiciren; W. D. Zhou

Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array

M. Amenomori^*, S. Ayabe, P. Y. Cao, Danzengluobu, L. K. Ding, Z. Y. Feng, Y. Fu, H. W. Guo, M. He, K. Hibino, N. Hotta, Q. Huang, A. X. Huo, K. Izu, H. Y. Jia, F. Kajino, K. Kasahara, Y. Katayose, Labaciren, J. Y. LiH. Lu, S. L. Lu, G. X. Luo, X. R. Meng, K. Mizutani, J. Mu, H. Nanjo, M. Nishizawa, M. Ohnishi, I. Ohta, T. Ouchi, J. R. Ren, T. Saito, M. Sakata, T. Sasaki, Z. Z. Shi, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, K. Taira, Y. H. Tan, N. Tateyama, Shoji Torii, T. Utsugi, C. R. Wang, H. Wang, X. W. Xu, Y. Yamamoto, G. C. Yu, A. F. Yuan, T. Yuda, C. S. Zhang, H. M. Zhang, J. L. Zhang, N. J. Zhang, X. Y. Zhang, Zhaxisangzhu, Zhaxiciren, W. D. Zhou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

The Tibet experiment, operating at Yangbajing (4300 m above sea level), is the lowest energy air shower array, and the new high-density array constructed in 1996 is sensitive to γ-ray air showers at energies as low as 3 TeV. With this new array, the Crab Nebula was observed in multi-TeV γ-rays and a signal was detected at the 5.5 σ level. We also obtained the energy spectrum of γ-rays in the energy region above 3 TeV which partially overlaps those observed with imaging atmospheric Cerenkov telescopes. The Crab spectrum observed in this energy region can be represented by the power-law fit dJ(E)/dE = (4.61 ± 0.90) x 10^-12(E/3 TeV)^{-2.62 ± 0.17}cm^-2 s^-1 TeV^-1. This is the first observation of γ-ray signals from point sources with a conventional air shower array using scintillation detectors.

Original language	English
Journal	Astrophysical Journal
Volume	525
Issue number	2 PART 2
Publication status	Published - 1999 Nov 10
Externally published	Yes

Keywords

Gamma rays: observations
ISM: individual (Crab Nebula)
Supernova remnants

ASJC Scopus subject areas

Space and Planetary Science

Cite this

Amenomori, M., Ayabe, S., Cao, P. Y., Danzengluobu, Ding, L. K., Feng, Z. Y., Fu, Y., Guo, H. W., He, M., Hibino, K., Hotta, N., Huang, Q., Huo, A. X., Izu, K., Jia, H. Y., Kajino, F., Kasahara, K., Katayose, Y., Labaciren, ... Zhou, W. D. (1999). Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array. Astrophysical Journal, 525(2 PART 2).

Amenomori, M, Ayabe, S, Cao, PY, Danzengluobu, Ding, LK, Feng, ZY, Fu, Y, Guo, HW, He, M, Hibino, K, Hotta, N, Huang, Q, Huo, AX, Izu, K, Jia, HY, Kajino, F, Kasahara, K, Katayose, Y, Labaciren, Li, JY, Lu, H, Lu, SL, Luo, GX, Meng, XR, Mizutani, K, Mu, J, Nanjo, H, Nishizawa, M, Ohnishi, M, Ohta, I, Ouchi, T, Ren, JR, Saito, T, Sakata, M, Sasaki, T, Shi, ZZ, Shibata, M, Shiomi, A, Shirai, T, Sugimoto, H, Taira, K, Tan, YH, Tateyama, N, Torii, S, Utsugi, T, Wang, CR, Wang, H, Xu, XW, Yamamoto, Y, Yu, GC, Yuan, AF, Yuda, T, Zhang, CS, Zhang, HM, Zhang, JL, Zhang, NJ, Zhang, XY, Zhaxisangzhu, Zhaxiciren & Zhou, WD 1999, 'Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array', Astrophysical Journal, vol. 525, no. 2 PART 2.

@article{dbd6ffa1646f47f0a0ebfacdc2b83cef,

title = "Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array",

abstract = "The Tibet experiment, operating at Yangbajing (4300 m above sea level), is the lowest energy air shower array, and the new high-density array constructed in 1996 is sensitive to γ-ray air showers at energies as low as 3 TeV. With this new array, the Crab Nebula was observed in multi-TeV γ-rays and a signal was detected at the 5.5 σ level. We also obtained the energy spectrum of γ-rays in the energy region above 3 TeV which partially overlaps those observed with imaging atmospheric Cerenkov telescopes. The Crab spectrum observed in this energy region can be represented by the power-law fit dJ(E)/dE = (4.61 ± 0.90) x 10-12(E/3 TeV)-2.62 ± 0.17cm-2 s-1 TeV-1. This is the first observation of γ-ray signals from point sources with a conventional air shower array using scintillation detectors.",

keywords = "Gamma rays: observations, ISM: individual (Crab Nebula), Supernova remnants",

author = "M. Amenomori and S. Ayabe and Cao, {P. Y.} and Danzengluobu and Ding, {L. K.} and Feng, {Z. Y.} and Y. Fu and Guo, {H. W.} and M. He and K. Hibino and N. Hotta and Q. Huang and Huo, {A. X.} and K. Izu and Jia, {H. Y.} and F. Kajino and K. Kasahara and Y. Katayose and Labaciren and Li, {J. Y.} and H. Lu and Lu, {S. L.} and Luo, {G. X.} and Meng, {X. R.} and K. Mizutani and J. Mu and H. Nanjo and M. Nishizawa and M. Ohnishi and I. Ohta and T. Ouchi and Ren, {J. R.} and T. Saito and M. Sakata and T. Sasaki and Shi, {Z. Z.} and M. Shibata and A. Shiomi and T. Shirai and H. Sugimoto and K. Taira and Tan, {Y. H.} and N. Tateyama and Shoji Torii and T. Utsugi and Wang, {C. R.} and H. Wang and Xu, {X. W.} and Y. Yamamoto and Yu, {G. C.} and Yuan, {A. F.} and T. Yuda and Zhang, {C. S.} and Zhang, {H. M.} and Zhang, {J. L.} and Zhang, {N. J.} and Zhang, {X. Y.} and Zhaxisangzhu and Zhaxiciren and Zhou, {W. D.}",

year = "1999",

month = nov,

day = "10",

language = "English",

volume = "525",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2 PART 2",

}

TY - JOUR

T1 - Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array

AU - Amenomori, M.

AU - Ayabe, S.

AU - Cao, P. Y.

AU - Danzengluobu,

AU - Ding, L. K.

AU - Feng, Z. Y.

AU - Fu, Y.

AU - Guo, H. W.

AU - He, M.

AU - Hibino, K.

AU - Hotta, N.

AU - Huang, Q.

AU - Huo, A. X.

AU - Izu, K.

AU - Jia, H. Y.

AU - Kajino, F.

AU - Kasahara, K.

AU - Katayose, Y.

AU - Labaciren,

AU - Li, J. Y.

AU - Lu, H.

AU - Lu, S. L.

AU - Luo, G. X.

AU - Meng, X. R.

AU - Mizutani, K.

AU - Mu, J.

AU - Nanjo, H.

AU - Nishizawa, M.

AU - Ohnishi, M.

AU - Ohta, I.

AU - Ouchi, T.

AU - Ren, J. R.

AU - Saito, T.

AU - Sakata, M.

AU - Sasaki, T.

AU - Shi, Z. Z.

AU - Shibata, M.

AU - Shiomi, A.

AU - Shirai, T.

AU - Sugimoto, H.

AU - Taira, K.

AU - Tan, Y. H.

AU - Tateyama, N.

AU - Torii, Shoji

AU - Utsugi, T.

AU - Wang, C. R.

AU - Wang, H.

AU - Xu, X. W.

AU - Yamamoto, Y.

AU - Yu, G. C.

AU - Yuan, A. F.

AU - Yuda, T.

AU - Zhang, C. S.

AU - Zhang, H. M.

AU - Zhang, J. L.

AU - Zhang, N. J.

AU - Zhang, X. Y.

AU - Zhaxisangzhu,

AU - Zhaxiciren,

AU - Zhou, W. D.

PY - 1999/11/10

Y1 - 1999/11/10

N2 - The Tibet experiment, operating at Yangbajing (4300 m above sea level), is the lowest energy air shower array, and the new high-density array constructed in 1996 is sensitive to γ-ray air showers at energies as low as 3 TeV. With this new array, the Crab Nebula was observed in multi-TeV γ-rays and a signal was detected at the 5.5 σ level. We also obtained the energy spectrum of γ-rays in the energy region above 3 TeV which partially overlaps those observed with imaging atmospheric Cerenkov telescopes. The Crab spectrum observed in this energy region can be represented by the power-law fit dJ(E)/dE = (4.61 ± 0.90) x 10-12(E/3 TeV)-2.62 ± 0.17cm-2 s-1 TeV-1. This is the first observation of γ-ray signals from point sources with a conventional air shower array using scintillation detectors.

AB - The Tibet experiment, operating at Yangbajing (4300 m above sea level), is the lowest energy air shower array, and the new high-density array constructed in 1996 is sensitive to γ-ray air showers at energies as low as 3 TeV. With this new array, the Crab Nebula was observed in multi-TeV γ-rays and a signal was detected at the 5.5 σ level. We also obtained the energy spectrum of γ-rays in the energy region above 3 TeV which partially overlaps those observed with imaging atmospheric Cerenkov telescopes. The Crab spectrum observed in this energy region can be represented by the power-law fit dJ(E)/dE = (4.61 ± 0.90) x 10-12(E/3 TeV)-2.62 ± 0.17cm-2 s-1 TeV-1. This is the first observation of γ-ray signals from point sources with a conventional air shower array using scintillation detectors.

KW - Gamma rays: observations

KW - ISM: individual (Crab Nebula)

KW - Supernova remnants

UR - http://www.scopus.com/inward/record.url?scp=0033544265&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033544265&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0033544265

SN - 0004-637X

VL - 525

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

Observation of multi-TeV gamma rays from the Crab Nebula using the Tibet air shower array

Abstract

Keywords

ASJC Scopus subject areas

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