First Demonstration of Early Warning Gravitational-wave Alerts

Magee, Ryan and Chatterjee, Deep and Singer, Leo P. and Sachdev, Surabhi and Kovalam, Manoj and Mo, Geoffrey and Anderson, Stuart and Brady, Patrick and Brockill, Patrick and Cannon, Kipp and Dal Canton, Tito and Chu, Qi and Clearwater, Patrick and Codoreanu, Alex and Drago, Marco and Godwin, Patrick and Ghosh, Shaon and Greco, Giuseppe and Hanna, Chad and Kapadia, Shasvath J. and Katsavounidis, Erik and Oloworaran, Victor and Pace, Alexander E. and Panther, Fiona and Patwary, Anwarul and De Pietri, Roberto and Piotrzkowski, Brandon and Prestegard, Tanner and Rei, Luca and Sreekumar, Anala K. and Szczepańczyk, Marek J. and Valsan, Vinaya and Viets, Aaron and Wade, Madeline and Wen, Linqing and Zweizig, John (2021) First Demonstration of Early Warning Gravitational-wave Alerts. The Astrophysical Journal Letters, 910 (2). L21. ISSN 2041-8205

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Abstract

Gravitational-wave observations became commonplace in Advanced LIGO-Virgo's recently concluded third observing run. 56 nonretracted candidates were identified and publicly announced in near real time. Gravitational waves from binary neutron star mergers, however, remain of special interest since they can be precursors to high-energy astrophysical phenomena like γ-ray bursts and kilonovae. While late-time electromagnetic emissions provide important information about the astrophysical processes within, the prompt emission along with gravitational waves uniquely reveals the extreme matter and gravity during—and in the seconds following—merger. Rapid communication of source location and properties from the gravitational-wave data is crucial to facilitate multimessenger follow-up of such sources. This is especially enabled if the partner facilities are forewarned via an early warning (pre-merger) alert. Here we describe the commissioning and performance of such a low-latency infrastructure within LIGO-Virgo. We present results from an end-to-end mock data challenge that detects binary neutron star mergers and alerts partner facilities before merger. We set expectations for these alerts in future observing runs.

Item Type: Article
Subjects: Science Global Plos > Physics and Astronomy
Depositing User: Unnamed user with email support@science.globalplos.com
Date Deposited: 16 May 2023 08:25
Last Modified: 31 Jan 2024 04:29
URI: http://ebooks.manu2sent.com/id/eprint/864

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