[论文解读] Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

Marcelo Ernesto Burgos Cayupil|arXiv (Cornell University)|Feb 7, 2023

Pulsars and Gravitational Waves Research被引用 11

一句话总结

本文宣布来自 LIGO、Virgo、KAGRA 和 GEO 的第三次观测运行（O3）的开放数据发布。

ABSTRACT

The global network of gravitational-wave observatories now includes five detectors, namely LIGO Hanford, LIGO Livingston, Virgo, KAGRA, and GEO 600. These detectors collected data during their third observing run, O3, composed of three phases: O3a starting in April of 2019 and lasting six months, O3b starting in November of 2019 and lasting five months, and O3GK starting in April of 2020 and lasting 2 weeks. In this paper we describe these data and various other science products that can be freely accessed through the Gravitational Wave Open Science Center at https://gwosc.org. The main dataset, consisting of the gravitational-wave strain time series that contains the astrophysical signals, is released together with supporting data useful for their analysis and documentation, tutorials, as well as analysis software packages.

研究动机与目标

• 描述来自 LIGO、Virgo、KAGRA 和 GEO 的第三次观测运行（O3）的开放数据发布。
• 总结随发布提供的数据产品、格式和元数据。
• 解释访问程序和使用指南，以促进用户参与。
• 突出与发布相关的合作、数据质量和校准信息。

提出的方法

• 识别并编目来自 O3 的数据产品。
• 概述发布中包含的数据格式、校准元数据和质量标记。
• 描述用于数据检索的访问界面、文档以及任何 API 或门户。
• 总结对发布数据的治理、许可和引用惯例。

Figure 2: Binary neutron star ranges for O3a (upper plot), O3b (middle plot) with LIGO Hanford (red), LIGO Livingston (blue) and Virgo (purple) and for O3GK (bottom plot) with GEO 600 (black) and KAGRA (yellow). Similar plots (besides style differences) can be found on the GWOSC web pages for O3a 4

实验结果

研究问题

• RQ1 O3 开放数据发布中包含哪些数据产品？
• RQ2 研究人员如何访问和利用 O3 数据及相关元数据？

Figure 3: Timelines for the full O3a (top) and O3b (middle) and O3GK (bottom) observing runs based on the data quality bitmask CBC_CAT1 for each detector (see Tab. 3 ). Colored bars represent times when data are available, and white areas show times when data are not available. Similar plots can be