Gamma-ray observations of the Crab nebula at TeV energies
Gamma-ray observations of the Crab nebula at TeV energies
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TeV 能量下蟹状星云的伽马射线观测
DOI：
10.1086/170376
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
T. Weekes
中科院分区：
文献类型：
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作者：
G. Vacanti;M. Cawley;E. Colombo;D. Fegan;A. Hillas;P. Kwok;M. Lang;R. Lamb;D. Lewis;D. Macomb;K. O'flaherty;P. Reynolds;T. Weekes
用维普莱天文台的高分辨率大气切伦科夫照相机在TeV γ射线中观测蟹状星云，并在20 σ水平上探测到信号。没有证据表明脉冲星的周期性，流量在月时间尺度上是稳定的。如果这个信号被用来优化伽马射线探测技术，那么在60小时的积分时间内，可以在3 σ水平上探测到相当于蟹状星云十分之一的通量。对于同轴源，角分辨率为± 0.1°
The Crab Nebula was observed in TeV gamma rays with the Whipple Observatory high-resolution atmospheric Cherenkov camera and a signal was detected at the 20 σ level. There is no evidence for the pulsar periodicity, and the flux is steady on a monthly time scale. If this signal is used to optimize the technique for gamma-ray detection, then a flux one-tenth that of the Crab can be detected at the 3 σ level in 60 hr of integration time. For an on-axis source the angular resolution is shown to be ± 0.1°