Volume 634, February 2020
|Number of page(s)||9|
|Section||Numerical methods and codes|
|Published online||31 January 2020|
Web application for galaxy-targeted follow-up of electromagnetic counterparts to gravitational wave sources⋆
School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
Accepted: 11 December 2019
The Laser Interferometer Gravitational Wave Observatory (LIGO) and Virgo Collaboration’s Observing Run 3 has demanded the development of widely-applicable tools for gravitational wave follow-up. These tools must address the main challenges of the multi-messenger era, namely covering large localisation regions and quickly identifying decaying transients. To address these challenges, we present a public web interface to assist astronomers in conducting galaxy-targeted follow-up of gravitational wave events by offering a fast and public list of targets post-gravitational wave trigger. After a gravitational wave trigger, the back-end galaxy retrieval algorithm identifies and scores galaxies based on the LIGO and Virgo computed probabilities and properties of the galaxies taken from the Galaxy List for the Advanced Detector Era V2 galaxy catalogue. Within minutes, the user can retrieve, download, and limit ranked galaxy lists from the web application. The algorithm and website have been tested on past gravitational wave events, and execution times have been analysed. The algorithm is being triggered automatically during Observing Run 3 and its features will be extended if needed. The web application was developed using the Python based Flask web framework.
Key words: gravitational waves / methods: observational / gamma-ray burst: general / telescopes
The web application is freely available and publicly accessible at https://gwtool.watchertelescope.ie.
© ESO 2020
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