2023/12/28 by Félix-Louis Julié, Julié, Félix-Louis · 6 citations
Mathematics · Physics and Astronomy · #Adaptive optics and wavefront sensing #Astrophysical Phenomena and Observations #Binary number #Black hole (networking) #Classical mechanics #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #General relativity #Geometry #Gravitation #Mathematical physics #Mathematics #Parameter space #Physics #Pulsars and Gravitational Waves Research #Scalar (mathematics) #Schwarzschild metric #Schwarzschild radius #Theoretical physics
paper · pdf · doi:10.48550/arxiv.2312.16764
openalex publication_date 2023/12/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that Schwarzschild black hole binaries can undergo dynamical scalarization (DS) in the inspiral phase, in a subclass of ℤ2-symmetric Einstein-scalar-Gauss-Bonnet (ESGB) theories of gravity. The mechanism is analogous to neutron star DS in scalar-tensor gravity, and it differs from the late merger and ringdown black hole (de)scalarization found in recent ESGB studies. To our knowledge, the new parameter space we highlight was unexplored in numerical relativity simulations. We also estimate the orbital separation at the DS onset, and characterize the subsequent scalar hair growth at the adiabatic approximation.