寻找超高能宇宙线源——西藏广延空气簇射实验  

SEARCH FOR SOURCES OF UITRA-HIGH ENERGY COSMIC RAY——TIBET EAS EXPERIMENT

作　　者：贾焕玉[1,2,3,4,5,6,7,8,9,10,11,12,13] Amenomori M 戴本忠 丁林垲[1,2,3,4,5,6,7,8,9,10,11,12,13] 冯振勇 HibinoK[1,2,3,4,5,6,7,8,9,10,11,12,13] HottaN[1,2,3,4,5,6,7,8,9,10,11,12,13] 黄庆 霍安祥 KajinoF KasaharaK[1,2,3,4,5,6,7,8,9,10,11,12,13] 拉巴次仁 刘绍敏 梅东明[1,2,3,4,5,6,7,8,9,10,11,12,13] 孟宪茹 MizutaniK 木均 NanjoH[1,2,3,4,5,6,7,8,9,10,11,12,13] NishizawaM OguroA[1,2,3,4,5,6,7,8,9,10,11,12,13] OhnishiM OhtaI[1,2,3,4,5,6,7,8,9,10,11,12,13] O 

机构地区：[1]中国西南交通大学物理系 [2]日本弘前大学 [3]中国西藏大学数理系 [4]中国云南大学物理系 [5]日本琦玉大学 [6]中国科学院高能物理研究所 [7]日本东京大学宇宙线研究所 [8]日本神奈川大学 [9]日本东京航空工程学院 [10]日本宇都宫大学 [11]日本横滨国立大学 [12]日本甲南大学 [13]日本相模工业大学

出　　处：《物理学进展》1998年第4期358-368,共11页Progress In Physics

基　　金：中国自然科学基金;日本文部省资助

摘　　要：总结了１９９０年６月到１９９３年１０月期间西藏空气簇射阵列的观测结果。寻找了来自于蟹状星云、Ｘ射线双星、脉冲星、活动星系核和其它活动天体的能量为１０ＴｅＶγ射线连续发射，没有发现连续稳定发射的迹象，但给出了每个源的流强上限。在阵列所观测的天区寻找了１０ＴｅＶ的γ暴，结果没有发现能量１０ＴｅＶ的γ暴，最后也给出了发现此种γ暴的上限。应用该阵列，明显地观测到了能量为１０ＴｅＶ的宇宙线流强的太阳和月亮阴影。观测了朝向和远离太阳的行星际空间磁场对宇宙线阴影的影响，这是行星际磁场对阴影位移影响的第一次直接观测。研究并发现在实验期间，太阳阴影的位置每年都在变化。同时观测在此期间，朝向和远离方向的宇宙线阴影的不同变化。另外，应用该实验的数据，给出了所谓的“膝”区的原初宇宙线能谱。This paper shows some results got from observation during the period from July,1990 to October,1993 with Tibet air shower array. The continuous emission of 10TeV gamma ray from the Crab Nebula,X-ray double star,Pulsar, AGN and other active objects have been searched. There is no sign of continuous stable emission, but upper limit fluxs have been obtained. The 10TeV gamma burst has also been searched and the 10TeV gamma bursts have not been found. With the array, the Sun and the Moon shadow of 10TeV cosmic ray was clearly observed. The influence of the toward and away the Sun interplanetary magnetic field(IMF) to the cosmic ray shadow has been observed.During the observation the Sun shadow varied every year. The variations of the toward and away cosmic ray shadow are different. In addition the primary cosmic ray energy spectrum in the `knee' region has been given.

关 键 词：宇宙线 广延空气簇射 阵列 超高能 Γ射线 西藏 

分 类 号：O572.1[理学—粒子物理与原子核物理] P353.5[理学—物理]