The goal of the laser interferometer gravitational-wave observatory (LIGO) project is to detect and study gravitational waves from astrophysical sources. Currently, three interferometers with arm lengths of several kilometres and a design strain sensitivity of order 2 x 10(-23) Hz(-1/2) are being commissioned at two independent sites in Hanford (WA) and Livingston (LA). This paper describes the current work towards achieving LIGO's final sensitivity. [References: 21]
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机译：激光干涉仪重力波天文台（LIGO）项目的目的是检测和研究来自天体物理学来源的重力波。目前，正在汉福德（WA）和利文斯顿（LA）的两个独立站点调试三台臂长为几公里，设计应变灵敏度为2 x 10（-23）Hz（-1/2）的干涉仪。本文介绍了实现LIGO最终灵敏度的当前工作。 [参考：21]
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