TY - JOUR
T1 - GW241011 and GW241110
T2 - Exploring Binary Formation and Fundamental Physics with Asymmetric, High-spin Black Hole Coalescences
AU - The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration
AU - Abac, A. G.
AU - Abouelfettouh, I.
AU - Acernese, F.
AU - Ackley, K.
AU - Adamcewicz, C.
AU - Adhicary, S.
AU - Adhikari, D.
AU - Adhikari, N.
AU - Adhikari, R. X.
AU - Adkins, V. K.
AU - Afroz, S.
AU - Agapito, A.
AU - Agarwal, D.
AU - Agathos, M.
AU - Aggarwal, N.
AU - Aggarwal, S.
AU - Aguiar, O. D.
AU - Ahrend, I. L.
AU - Aiello, L.
AU - Ain, A.
AU - Ajith, P.
AU - Akutsu, T.
AU - Albanesi, S.
AU - Ali, W.
AU - Al-Kershi, S.
AU - Alléné, C.
AU - Allocca, A.
AU - Al-Shammari, S.
AU - Altin, P. A.
AU - Alvarez-Lopez, S.
AU - Amar, W.
AU - Amarasinghe, O.
AU - Amato, A.
AU - Amicucci, F.
AU - Amra, C.
AU - Ananyeva, A.
AU - Anderson, S. B.
AU - Anderson, W. G.
AU - Andia, M.
AU - Ando, M.
AU - Andrés-Carcasona, M.
AU - Andrić, T.
AU - Anglin, J.
AU - Ansoldi, S.
AU - Antelis, J. M.
AU - Antier, S.
AU - Antonini, F.
AU - Aoumi, M.
AU - Appavuravther, E. Z.
AU - Chaty, S.
N1 - Publisher Copyright:
© 2025 American Astronomical Society. All rights reserved.
PY - 2025/11/1
Y1 - 2025/11/1
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/105031796184
U2 - 10.3847/2041-8213/ae0d54
DO - 10.3847/2041-8213/ae0d54
M3 - Article
AN - SCOPUS:105031796184
SN - 2041-8205
VL - 993
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 1
M1 - 21
ER -