Inspired by the LIGO-Virgo-KAGRA (LVK) collaboration Gravitational Wave Open Science Center (GWOSC) Open Data Workshops, the CUHK Gravitational Wave Research Group is organizing its first Gravitational Wave Open Data Workshop, on August 15, 16, 19 and 20 (August 20 will be covering Advanced Topics).
The workshop aims to introduce the basics of gravitational-wave data analysis, covering the following Fundamental topics:
- Understanding and downloading open-to-public gravitational-wave data (hereby known as open data) from GWOSC.
- Visualizing gravitational-wave signals in data in the time domain and frequency domain.
- Generating gravitational-wave waveforms from compact binary coalescences (CBCs).
- Searching for CBC signals with simple matched-filtering analysis.
- Running Bayesian parameter estimation to extract information of the sources of CBC signals.
We also have advanced topics for dedicated participants, including:
- How to perform a GstLAL time-domain matched-filtering based search
- Introduction to population analysis with gravitational-wave data
- Introduction to BILBY, a Bayesian parameter estimation package.
- And more…
Targets
The Workshop is open to all interested undergraduate and graduate students, postdocs, and professors. Participants are expected to have prior coding experience with Python.
(Note: This workshop is mandatory to incoming graduate students of the CUHK Gravitational-Wave research group.)
Pre-requisites
There is no particular prerequisite for this workshop. However, we strongly recommend participants to bring in their own laptop. A local installation of Python is welcome, but totally optional.
Registration
There is no registration fee for attending the workshop. If you are interested to participate in the workshop, please register via this link: https://forms.gle/YSsJZZjzqdpFKwo4A.
Schedule
Day 1, August 15 (Thursday) : How to access open data from GWOSC
| 09:00 – 09:30 | Morning coffee and registration |
| 09:30 – 10:00 | Opening and Introduction |
| 10:00 – 10:30 | Mini-lecture: Introduction to Gravitational-Wave Open Science Center (GWOSC), Gravitational Wave Data and Transient Catalogs |
| 10:30 – 11:00 | Break |
| 11:00 – 12:00 | Tutorial 1.1: Discovering Open Data |
| Tutorial 1.2: Accessing Open Data with gwpy | |
| 12:00 – 13:30 | Lunch |
| 13:30 – 14:30 | Tutorial 1.3: Q-transform with gwpy |
| 14:30 – 15:00 | Break |
| 15:00 – 16:00 | Tutorial 1.4: Generating CBC gravitational-wave waveforms with pyCBC |
Day 2, August 16 (Friday) : Searching for Gravitational Waves from Compact Binary Coalescences
| 09:00 – 09:30 | Morning coffee |
| 09:30 – 10:10 | Mini-Lecture: Searching for gravitational waves from compact binary coalescences – A Primer |
| 10:10 – 10:30 | Break |
| 10:30 – 12:00 | Tutorial 2.1: Introduction to matched-filtering |
| Tutorial 2.2A: Matched-filtering in action (Part I) | |
| 12:00 – 13:30 | Lunch |
| 13:30 – 14:30 | Tutorial 2.2B: Matched-filtering in action (Part II) |
| 14:30 – 14:45 | Break |
| 14:45 – 16:00 | Tutorial 2.3: Signal Consistency Check in pyCBC |
Day 3, August 19 (Monday) : Introduction to Parameter estimation for Gravitational Waves from Compact Binary Coalescences
| 09:00 – 09:30 | Morning coffee |
| 09:30 – 10:10 | Mini-Lecture: Introduction to Bayesian Analysis and Parameter Estimation |
| 10:10 – 10:30 | Break |
| 10:30 – 12:00 | Tutorial 3.1: Introduction to Parameter Estimation |
| Tutorial 3.2A: Parameter Estimation for Compact Binary Coalescences (Part I) | |
| 12:00 – 13:30 | Lunch |
| 13:30 – 14:30 | Tutorial 3.2B: Parameter Estimation for Compact Binary Coalescences (Part II) |
| 14:30 – 15:00 | Break |
| 15:00 – 16:00 | Tutorial 3.3: Discovering and using published posterior samples |
Day 4, August 20 (Tuesday) : Advanced Topics [TBC]
| 09:00 – 09:30 | Morning coffee |
| 09:30- 10:30 | Tutorial 4.1: Running a standard pyCBC search |
| 10:30 – 11:00 | Break |
| 11:00 – 12:00 | Tutorial 4.2: Running a standard GstLAL search |
| 12:00 – 13:30 | Lunch |
| 13:30 – 14:30 | Tutorial 4.3: Introduction to Population Analysis |
| 14:30 – 15:00 | Break |
| 15:00 – 16:00 | Tutorial 4.4: BILBY as a general parameter estimation toolkit |
Venue
All the presentations and hands-on sessions will be held in Room 326 of the Science Center, The Chinese University of Hong Kong.
Organizing committee
If you have any questions, feel free to contact us:
- Otto Hannuksela: oahannuksela@cuhk.edu.hk
- Alvin Li: alvin.li@ligo.org
- Paul Martens: paulmartens@cuhk.edu.hk