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The MBTA Pipeline for Detecting Compact Binary Coalescences in the Fourth LIGO-Virgo-KAGRA Observing Run

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arxiv 2501.04598 v2 pith:4QQPM3SX submitted 2025-01-08 gr-qc astro-ph.IM

Christopher Alléné , Florian Aubin , Inès Bentara , Damir Buskulic , Gianluca M Guidi , Vincent Juste , Morgan Lethuillier , Frédérique Marion
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Lorenzo Mobilia Benoît Mours Amazigh Ouzriat Thomas Sainrat Viola Sordini
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classification gr-qcastro-ph.IM
keywords configurationobservingpartpipelinebinarycompactfourthgive
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In this paper, we describe the Multi-Band Template Analysis (MBTA) search pipeline dedicated to the detection of compact binary coalescence (CBC) gravitational wave signals from the data obtained by the LIGO-Virgo-KAGRA collaboration (LVK) during the fourth observing run (O4), which started in May 2023. We give details on the configuration of the pipeline and its evolution compared to the third observing run (O3). We focus here on the configuration used for the offline results of the first part of the run (O4a), which are part of the GWTC-4 catalog (in preparation). We also give a brief summary of the online configuration and highlight some of the changes implemented or considered for the second part of O4 (O4b).

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. nmma: An extended Bayesian framework for Nuclear Multimessenger Astronomy in the Era of Next-Generation Detectors

    astro-ph.IM 2026-07 accept novelty 6.0 of 10

    nmma now jointly samples nuclear EoS parameters with GW and EM data via TOV emulators and Fiesta surrogates, delivering 20–60× speedups and future H0–nuclear constraints.

  2. Parameter Estimation on LIGO-Virgo-KAGRA O4a Binary Merger Triggers with Sub-solar Mass Components

    gr-qc 2026-07 conditional novelty 5.0 of 10

    Bayesian re-analysis of the seven LVK O4a sub-solar-mass triggers finds three that are compatible with a sub-solar-mass component, though none rises to detection significance.

  3. All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run

    astro-ph.HE 2025-07 conditional novelty 4.0 of 10

    An all-sky search of O4a LIGO data finds no new gravitational-wave bursts and improves burst sensitivity and rate limits by factors of 2 to 10 over the previous run.

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