Black hole formation in relativistic Oscillaton collisions

Abstract

We investigate the physics of black hole formation from the head-on collisions of boosted equal mass Oscillatons (OS) in full numerical relativity, for both the cases where the OS have equal phases or are maximally off-phase (anti-phase). While unboosted OS collisions will form a BH as long as their initial compactness $\mathcal{C}\equiv GM/R$ is above a numerically determined critical value $\mathcal{C}>0.035$, we find that imparting a small initial boost counter-intuitively \emph{prevents} the formation of black holes even if $\mathcal{C}>0.035$. If the boost is further increased, at very high boosts $\gamma >1/12\mathcal{C}$, BH formation occurs as predicted by the hoop conjecture. These two limits combine to form a "stability band" where collisions result in either the OS "passing through" (equal phase) or "bouncing back" (anti-phase), with a critical point occurring around $\mathcal{C}\approx 0.07$. We argue that the existence of this stability band can be explained by the competition between the free fall and the interaction timescales of the collision.

References in corpus (53)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
• GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Axion Cosmology
• String Axiverse
• Ultralight scalars as cosmological dark matter
• Axions In String Theory
• Accurate Evolutions of Orbiting Black-Hole Binaries Without Excision
• Gravitational wave extraction from an inspiraling configuration of merging black holes
• GW170608: Observation of a 19-solar-mass Binary Black Hole Coalescence
• On the Numerical Integration of Einstein's Field Equations
• A Multi-Code Analysis Toolkit for Astrophysical Simulation Data
• The Low-Energy Frontier of Particle Physics
• Echoes of ECOs: gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale
• The type IIB string axiverse and its low-energy phenomenology
• The QCD Axion and Moduli Stabilisation
• Formation of Solitonic Stars Through Gravitational Cooling
• Simulations of solitonic core mergers in ultra-light axion dark matter cosmologies
• Distinguishing Boson Stars from Black Holes and Neutron Stars from Tidal Interactions in Inspiraling Binary Systems
• Gravitational Wave Signatures of Highly Compact Boson Star Binaries
• Ultra Relativistic Particle Collisions
• Head-on collisions of boson stars
• Hunting for Dark Particles with Gravitational Waves
• The Quest for an Intermediate-Scale Accidental Axion and Further ALPs
• GRChombo : Numerical Relativity with Adaptive Mesh Refinement
• Black hole formation from axion stars
• Black holes and fundamental fields in Numerical Relativity: initial data construction and evolution of bound states
• End Point of Black Ring Instabilities and the Weak Cosmic Censorship Conjecture
• On the final fate of compact boson star mergers
• Interaction between bosonic dark matter and stars
• Numerical studies of Phi^2-Oscillatons
• Substructure of fuzzy dark matter haloes
• Ultrarelativistic black hole formation
• Formation, Gravitational Clustering and Interactions of Non-relativistic Solitons in an Expanding Universe
• Oscillatons revisited
• End Point of the Ultraspinning Instability and Violation of Cosmic Censorship
• How to Run Through Walls: Dynamics of Bubble and Soliton Collisions
• Gravitational Wave Emission from Collisions of Compact Scalar Solitons
• Interference of Dark Matter Solitons and Galactic Offsets
• Black-hole production from ultrarelativistic collisions
• Axion star collisions with black holes and neutron stars in full 3D numerical relativity
• Formation of Relativistic Axion Stars
• Classical and Quantum Decay of Oscillatons: Oscillating Self-Gravitating Real Scalar Field Solitons
• Neutron star -- axion star collisions in the light of multi-messenger astronomy
• Full 3D Numerical Relativity Simulations of Neutron Star -- Boson Star Collisions with BAM
• A Clash of Kinks: Phase shifts in colliding non-integrable solitons
• A scattering theory of ultrarelativistic solitons
• Estimating gravitational radiation from super-emitting compact binary systems
• Ultra-relativistic oscillon collisions

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