Implications of GW241011 for rotating exotic compact objects
General Relativity and Quantum Cosmology
2025-11-24 v1
Abstract
A number of theoretical proposals have been made for horizonless compact objects with masses and spins similar to those of black holes. While gravitational wave signatures from their mergers can resemble those of black holes, features like the spin-induced quadrupole moment may reveal their distinct nature. Using the tight bounds on the spin-induced quadrupole moment of GW241011, we place gravitational wave constraints on the nature of its primary. We find that large classes of exotic compact objects (including rotating boson stars) cannot explain its nature, however, models of sufficiently large compactness of may still be viable contenders.
Cite
@article{arxiv.2511.17341,
title = {Implications of GW241011 for rotating exotic compact objects},
author = {N. V. Krishnendu and Tamara Evstafyeva and Aditya Vijaykumar and William E. East and Rimo Das and Sayantani Datta and Nils Siemonsen and Nami Uchikata and Poulami Dutta Roy and Anuradha Gupta and Ish Gupta and Syed U. Naqvi and Manuel Piarulli and Muhammed Saleem and Elise M. Sänger and Pratyusava Baral and Sajad A. Bhat and Thomas A. Callister and Mattia Emma and Carl-Johan Haster},
journal= {arXiv preprint arXiv:2511.17341},
year = {2025}
}
Comments
3 figures in the main text, 5 in the Supplementary Material