Reproducing GW150914: The First Observation of Gravitational Waves From a Binary Black Hole Merger
Reproducing GW150914: The First Observation of Gravitational Waves From a Binary Black Hole Merger
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DOI：
10.1109/mcse.2021.3059232
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发表时间：
2020-10
影响因子：
2.1
通讯作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
中科院分区：
文献类型：
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作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
2016 年，LIGO 和 Virgo 宣布首次观测到来自双黑洞合并的引力波，即 GW150914。为了确定这次探测的可信度，使用了大规模科学工作流来测量该事件的统计意义。它们使用了由 LIGO/Virgo 编写的代码，并在 LIGO 数据网格上执行。这些代码是公开的，但还没有人试图直接重现这些结果，尽管有几项分析已经复制了这些分析，证实了这次探测。我们尝试使用开放科学网格上公开的代码来重现 GW150914 发现论文中提出的结果。结果表明，我们可以重现主要结果，但由于使用的原始数据集不是公开的，我们无法完全重现 LIGO 分析。我们讨论了我们遇到的挑战，并为希望使自己的工作具有可重复性的科学家提出了建议。
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 dataset used is not public. We discuss the challenges we encountered and make recommendations for scientists who wish to make their work reproducible.