Mayflower mine 1500 GV detector : cosmic-ray anisotropy and search for Cygnus X-3

Mayflower mine 1500 GV detector : cosmic-ray anisotropy and search for Cygnus X-3
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DOI:
10.1086/170282
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发表时间:
1991-07
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
D. Cutler;D. Groom
D. Cutler;D. Groom
中科院分区:
其他
文献类型:
--
作者:
D. Cutler;D. Groom

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一个地下的缪子探测器被用来搜索宇宙射线通量在5.4年期间的周期性变化,这段时间结束于1983年5月。中值硬度为1.5×1012V的初级宇宙线产生4.4赫兹的Muon率。傅里叶变换数据在恒星频率处有一个峰值,其相对幅度为(3.2−0.6+0.8)×10−4,经太阳相对于星际局部介质的运动校正后,在R.A.3.h2±0处的各向异性为(5.3−0.7±0.8)×10−4。H5。
An underground muon detector was used to search for periodic changes in the cosmic-ray flux over a 5.4 yr period terminating in 1983 May. Primary cosmic rays with a median rigidity of 1.5 × 10 12 V produced a 4.4 Hz muon rate. The Fourier transformed data show a peak at the sidereal frequency with relative amplitude (3.2 −0.6 +0.8 ) × 10 −4 , which after correction for solar motion with respect to the local interstellar medium indicates an anisotropy of (5.3 −0.7 +0.8 ) × 10 −4 at R.A. 3. h 2 ± 0. h 5.