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GW241011 and GW241110$bexploring binary formation and fundamental physics with asymmetric, high-spin black hole coalescences

We report the observation of gravitational waves from two binary black hole coalescences during the fourth observing run of the LIGO-Virgo-KAGRA detector network, GW241011 and GW241110. The sources of these two signals are characterized by rapid and precisely measured primary spins, nonnegligible sp...

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Bibliographic Details
Main Authors: Abac, Adrian (Author) , Mapelli, Michela (Author) , Rinaldi, Stefano (Author)
Format: Article (Journal) Editorial
Language:English
Published: 2025 November 1
In: The astrophysical journal. Part 2, Letters
Year: 2025, Volume: 993, Issue: 1, Pages: 1-45
ISSN:2041-8213
DOI:10.3847/2041-8213/ae0d54
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.3847/2041-8213/ae0d54
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Author Notes:A.G. Abac, M. Mapelli, S. Rinaldi [und 1780 weitere Personen]
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Summary:We report the observation of gravitational waves from two binary black hole coalescences during the fourth observing run of the LIGO-Virgo-KAGRA detector network, GW241011 and GW241110. The sources of these two signals are characterized by rapid and precisely measured primary spins, nonnegligible spin-orbit misalignment, and unequal mass ratios between their constituent black holes. These properties are characteristic of binaries in which the more massive object was itself formed from a previous binary black hole merger and suggest that the sources of GW241011 and GW241110 may have formed in dense stellar environments in which repeated mergers can take place. As the third-loudest gravitational-wave event published to date, with a median network signal-to-noise ratio of 36.0, GW241011 furthermore yields stringent constraints on the Kerr nature of black holes, the multipolar structure of gravitational-wave generation, and the existence of ultralight bosons within the mass range 10−13-10−12 eV.
Item Description:Veröffentlicht: 28. Oktober 2025
Gesehen am 22.04.2026
Physical Description:Online Resource
ISSN:2041-8213
DOI:10.3847/2041-8213/ae0d54

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