首页> 外文会议>Proceedings of the 32nd International Cosmic Ray Conference >Influence of geomagnetic effects on large scale anisotropy searches
【24h】

Influence of geomagnetic effects on large scale anisotropy searches

机译:地磁效应对大规模各向异性搜索的影响

获取原文
获取原文并翻译 | 示例

摘要

We discuss the influence of the geomagnetic field on the energy estimate of extensive air showers with zenithangles smaller than 60, detected with the Surface Detector array of the Pierre Auger Observatory. The geomagneticfield induces a modulation of the energy estimator, depending on the shower direction, at the u0018 2% level at large zenithangles. We present a method to account for this modulation in the reconstruction of the energy of the cosmic rays. Weanalyse the effect of the energy shift on large scale anisotropy searches in the arrival direction distributions of cosmicrays above the energy threshold at which the detection efficiency of the surface detector array is saturated (3 EeV). At agiven energy, the geomagnetic effect is shown to induce a pseudo-dipolar pattern at the percent level in the declinationdistribution that needs to be accounted for before performing large scale anisotropy searches.
机译:我们讨论了地磁场对天顶角小于60的大型空气淋浴的能量估计的影响,这些能量通过Pierre Auger天文台的表面探测器阵列检测到。在大天顶角处,地磁场会根据淋浴方向在u0018 2%的水平上诱导能量估计器的调制。我们提出一种方法来解决宇宙射线能量的重建中的这种调制。在表面探测器阵列的探测效率达到饱和(3 EeV)的能量阈值之上的宇宙射线的到达方向分布中,分析了能量偏移对大规模各向异性搜索的影响。在给定的能量下,显示出地磁效应会在磁偏角分布的百分数水平上诱导出伪偶极子模式,在进行大规模各向异性搜索之前需要考虑该假偶极子模式。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号