Observation of Multi-T[CLC]e[/CLC]V Gamma Rays from the Crab Nebula using the Tibet Air Shower Array | Zendy

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

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Observation of Multi-T[CLC]e[/CLC]V Gamma Rays from the Crab Nebula using the Tibet Air Shower Array

Author(s) -

M. Amenomori,

S. Ayabe,

P. Y. Cao,

Danzengluobu Danzengluobu,

L. K. Ding,

Z. Y. Feng,

Y. Fu,

Hangwen Guo,

M. He,

K. Hibino,

N. Hotta,

Q. Huang,

A. X. Huo,

K. Izu,

H. Y. Jia,

F. Kajino,

K. Kasahara,

Y. Katayose,

Labaciren Labaciren,

J. Y. Li,

H. Lu,

S. L. Lu,

Gan 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,

ZhiCheng Shi,

M. Shibata,

A. Shiomi,

T. Shirai,

H. Sugimoto,

K. Taira,

Y. H. Tan,

N. Tateyama,

S. Torii,

Toshihiro 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 Zhaxiciren,

W. D. Zhou

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312342

Subject(s) - air shower , physics , crab nebula , gamma ray , scintillation , shower , energy spectrum , astrophysics , energy (signal processing) , detector , optics , cosmic ray , quantum mechanics , nozzle , thermodynamics

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 gamma-ray air showers at energies as low as 3 TeV. With this new array, the Crab Nebula was observed in multi-TeV gamma-rays and a signal was detected at the 5.5 sigma level. We also obtained the energy spectrum of gamma-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&parl0;E&parr0;&solm0;dE=&parl0;4.61+/-0.90&parr0;x10-12&parl0;E&solm0;3 TeV&parr0;-2.62+/-0.17 cm-2 s-1 TeV-1. This is the first observation of gamma-ray signals from point sources with a conventional air shower array using scintillation detectors.

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