Full 3D nonlinear dynamics of charged and magnetized boson stars

作     者：Víctor Jaramillo Darío Núñez Milton Ruiz Miguel Zilhão 

作者机构：Department of Astronomy University of Science and Technology of China Hefei Anhui 230026 China Department of Modern Physics University of Science and Technology of China Hefei Anhui 230026 China Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria A.P. 70-543 Coyoacán México 04510 CdMx México Centre for Research and Development in Mathematics and Applications (CIDMA) Department of Mathematics University of Aveiro 3810-193 Aveiro Portugal Departament d’Astronomia i Astrofísica Universitat de València C/ Dr Moliner 50 46100 Burjassot (València) Spain 

出 版 物：《Physical Review D》 (Phy. Rev. D)

年 卷 期：2025年第111卷第2期

页      面：024070-024070页

核心收录：

基　　金：EU’s Horizon 2020 Research and Innovation Center for Research and Development in Mathematics and Applications, CIDMA Generalitat Valenciana, GVA, (CIDEGENT/2021/046, CIPROM/2022/49) Agencia Estatal de Investigación, AEI, (PRE2019-087617, PID2021-125485NB-C21, MCIN/AEI/10.13039/501100011033) RISE Credit, (H2020-MSCA-RISE-2017, FunFiCO-777740) National Key Research and Development Program of China, NKRDPC, (2022YFC2204603) Consejo Nacional de Humanidades, Ciencias y Tecnologías, Conahcyt, (376127) European Regional Development Fund, ERDF, (2022.00721) Fundação para a Ciência e a Tecnologia, FCT, (2022.04560, CERN/FIS-PAR/0024/2021, PTDC/FIS-AST/3041/2020, UIDB/04106/2020, UIDP/04106/2020) Xi'an Eurasia University, EU, (2021.09676, CPCA.A2, NewFunFiCO-101086251, HORIZON-MSCA-2021-SE-01, AECT-2023-1-0006, 2022.15804) 

摘      要：Gauged boson stars are exotic compact objects that can potentially mimic black holes or magnetized neutron stars in both their gravitational and electromagnetic signatures, offering a compelling new description or even an alternative explanation for various multimessenger phenomena. As a crucial step toward establishing boson stars as viable multimessenger sources, we perform 3D numerical simulations of the fully nonlinear Einstein-Maxwell-Klein-Gordon system, focusing on both spherical and axisymmetric boson star configurations that vary in their electromagnetic coupling between the neutral case up to values close to the critical case, and thus their magnetic field content. For spherical configurations, we consistently find stable solutions. In contrast, for axially symmetric, electrically neutral, magnetized configurations, the dynamics are highly sensitive to the electromagnetic coupling. Configurations with stronger coupling develop a one-armed mode instability, which leads to collapse into black holes. Configurations with weaker coupling undergo a two-stage process: an initial bar-mode instability that triggers a one-armed spiral deformation. This eventually also results in black hole formation, accompanied by emissions of both gravitational and electromagnetic radiation. A similar instability and two-stage pattern is observed in all charged rotating boson stars analyzed. However, all of these configurations become stable when self-interactions are introduced.