LIGO Virgo Collaboration

Gravitational-wave Open Data Workshop #2

Physics dept, Paris Diderot University

April 8 - 10, 2019

A new astronomy based on gravitational waves was born with the first advanced LIGO and advanced Virgo discoveries and will develop with the third observation run, O3, that began in April 2019.

Bulk data from past observation runs and data snippets around the discoveries are made publicly available at, along with associated software libraries. This workshop is intended for students or more senior scientists that wish to learn about these data and software in order to conduct research in the field of gravitational-wave astronomy.

The workshop offered participants a hands-on introduction to working with software tools that allow to access and analyze open gravitational-wave data.

The program includes a mixture of lecture style presentations and hands-on programming exercises.

Workshop Web Course


The web course:
  • includes about 5 hours of lecture
  • includes 10-30 hours of data analysis programming exercises
  • is intended for people holding or pursuing a graduate degree in physics, astronomy, or a related field
  • targets learning objectives related to gravitational wave data analysis using LIGO and Virgo


Introduction to LIGO and Virgo

If you are not familiar with LIGO and Virgo, see this page

Introduction to Python

If you are not familiar with Python, see:

Basics on signal processing and Fourier transforms

If you are not familiar with working in the frequency domain, see (for example):


Git repo with the material for the hands-on and challenge sessions:

Software Setup

Follow the software setup instructions. You can also run all tutorials on a cloud platform such as Google Colab.

Lecture videos

Jo van den Brand, A primer on LIGO and Virgo gravitational wave detectors

[Link to slides]

Alan Weinstein, LIGO-Virgo data, data quality, calibration

[Link to slides]

Agata Trovato, Accessing and using GW open data, calibration

[Link to slides, tutorial]

Duncan McLeod, Introduction to GWpy

[Link to slides, tutorial]

Ed Porter, Basics of compact binary searches

[Link to slides, tutorial]

Ian Harry, Searching for compact binary mergers

[Link to slides, tutorial]

Vivien Raymond, Astrophysical parameter estimation for compact binary mergers

[Link to slides, tutorial]

Sarah Antier, Sky localization and gravitational-wave alerts

[Link to slides, tutorial]