Periodic signatures for the detection of cosmic axions.
Periodic signatures for the detection of cosmic axions.
复制标题
用于检测宇宙轴子的周期性特征。
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
M. Turner
中科院分区：
文献类型：
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作者：
M. Turner;M. Turner
在Sikivie型宇宙-轴子探测器中，由于轴子-光子转换而产生的微波信号的宽度和位置都取决于地球的运动。由于地球的轨道和旋转运动，它们将以1恒星日和1恒星年的周期调制，振幅分别约为0.1%和5%。由于Sikivie型探测器固有的高能量分辨率，这种周期性变化应该是可检测的。这种调制不仅有助于确认宇宙轴子的探测，而且如果被发现，还将提供有关轴子在晕中分布的重要信息。
In a Sikivie-type cosmic-axion detector, both the width and position of the microwave signal due to axion-photon conversion depend upon the motions of the earth. Due to the orbital and rotational motions of the earth they will be modulated with periods of 1 sidereal day and 1 sidereal year, with amplitudes of about 0.1 percent and 5 percent respectively. Because of the intrinsically-high energy resolution of Sikivie-type detectors such periodic variations should be detectable. Such modulations would not only aid in confirming the detection of cosmic axions, but, if found, would also provide important information about the distribution of axions in the halo.