CANGAROO-III搜寻半人马座A和半人马座区域$ω$的伽马射线
CANGAROO-III Search for Gamma Rays from Centaurus A and the $ω$ Centauri Region
摘要：
我们用CANGAROO-III立体观测系统观测了TeV能区的巨射电星系半人马座A和球状星团$ω$ Centauri。该系统自2004年以来一直在运行，拥有四个成像大气切伦科夫望远镜（IACT），$\sim$ 100米间距。观察是在2004年3月和4月进行的。总共，大约10个小时的数据，获得了每个target.No统计上显着的伽马射线信号已被发现超过420 GeV以上的一个广泛的角区域（1度半径从thepinning中心），我们推导出通量上限使用所有的视野。宇宙射线的总能量和密度的冷暗物质的影响被认为。
英文摘要：
We have observed the giant radio galaxy Centaurus A and the globular cluster $ω$ Centauri in the TeV energy region using the CANGAROO-III stereoscopic system. The system has been in operation since 2004 withan array of four Imaging Atmospheric Cherenkov Telescopes (IACT) with $\sim$100-m spacings. The observations were carried out in March and April 2004. In total, approximately 10 hours data were obtained for each target.No statistically significant gamma-ray signal has been found above 420 GeV over a wide angular region (a one-degree radius from thepointing center) and we derive flux upper limits using all of the field of view.Implications for the total energy of cosmic rays and the density of the cold dark matter are considered.
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