Details

Autor(en) / Beteiligte

• 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
• Li, J. Y
• Lu, H
• Lu, S. L
• Luo, G. X
• Meng, X. R
• Mizutani, K
• Mu, J
• Nanjo, H
• Nishizawa, M
• Ohnishi, M
• Ohta, I
• Ouchi, T
• Ren, J. R
• Saito, T
• Sakata, M
• Sasaki, T
• Shi, Z. Z
• Shibata, M
• Shiomi, A
• Shirai, T
• Sugimoto, H
• Taira, K
• Tan, Y. H
• Tateyama, N
• Torii, S
• Utsugi, T
• Wang, C. R
• Wang, H
• Xu, X. W
• Yamamoto, Y
• Yu, G. C
• Yuan, A. F
• Yuda, T
• Zhang, C. S
• Zhang, H. M
• Zhang, J. L
• Zhang, N. J
• Zhang, X. Y
• Zhaxisangzhu
• Zhaxiciren
• Zhou, W. D

Titel

Observation of Multi-TeV Gamma Rays from the Crab Nebula using the Tibet Air Shower Array

Ist Teil von

• The Astrophysical journal, 1999-11, Vol.525 (2), p.L93-L96

Ort / Verlag

United States: IOP Publishing

Erscheinungsjahr

1999

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• 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 E dE= 4.61+/-0.90 x10-12 E 3 TeV -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.