LIGO 小组首次直接探测到双黑洞并合过程中产生的引力波辐射，打开了观测宇宙的一个全新窗口.本文利用牛顿 力学，量纲分析，以及将引力波与电磁波类比等方法分析了LIGO 小组观测到的引力波数据.这些简单的分析能够解释LIGO 数据的主要物理结论，估算结果在数量级上与LIGO 数据基本一致.本文对黑洞质量，引力波源到地球的距离，双黑洞并合前的 初始距离，以及辐射的总能量等参数的估算与LIGO 和VIRGO 小组给出的结论基本一致.( 2017 美国物理教师协会)

By observing gravitational radiation from a binary black hole merger，the LIGO collaboration has simultaneously opened a new window on the universe and achieved the first direct detection of gravitational waves.Here this discovery is analyzed using concepts from introductory physics.Drawing upon Newtonian mechanics，dimensional considerations，and analogies between gravitational and electromagnetic waves，we are able to explain the principal features of LIGO’s data and make order of magnitude estimates of key parameters of the event by inspection of the data. Our estimates of the black hole masses，the distance to the event，the initial separation of the pair，and the stupendous total amount of energy radiated are all in good agreement with the best fit values of these parameters obtained by the LIGO-VIRGO collaboration