论文标题

复制GW150914:从二进制黑洞合并对重力波的第一次观察

Reproducing GW150914: the first observation of gravitational waves from a binary black hole merger

论文作者

Brown, Duncan A., Vahi, Karan, Taufer, Michela, Welch, Von, Deelman, Ewa

论文摘要

2016年,利戈(Ligo)和处女座宣布对二进制黑洞合并的重力波(称为GW150914)的首次观察。为了确定该检测的信心,使用大规模的科学工作流程来衡量事件的统计意义。他们使用了Ligo/Wirgo编写的代码,并在Ligo Data Grid上执行。这些代码已公开可用,但是尚未尝试直接复制结果,尽管有一些分析已复制了分析,从而证实了检测。我们尝试使用开放科学网格上的公开代码在GW150914发现纸中复制结果。我们表明我们可以重现主要结果,但是由于所使用的原始数据集不是公开的,因此我们不能精确地重现LiGO分析。我们讨论了我们遇到的挑战,并向希望使工作可重复的科学家提出建议。

In 2016, LIGO and Virgo announced the first observation of gravitational waves from a binary black hole merger, known as GW150914. To establish the confidence of this detection, large-scale scientific workflows were used to measure the event's statistical significance. They used code written by the LIGO/Virgo and were executed on the LIGO Data Grid. The codes are publicly available, but there has not yet been an attempt to directly reproduce the results, although several analyses have replicated the analysis, confirming the detection. We attempt to reproduce the result presented in the GW150914 discovery paper using publicly available code on the Open Science Grid. We show that we can reproduce the main result but we cannot exactly reproduce the LIGO analysis as the original data set used is not public. We discuss the challenges we encountered and make recommendations for scientists who wish to make their work reproducible.

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