Malaise and remedy of binary boson-star initial data
arXiv:2108.11995 · doi:10.1088/1361-6382/ac53b7
Abstract
Through numerical simulations of boson-star head-on collisions, we explore the quality of binary initial data obtained from the superposition of single-star spacetimes. Our results demonstrate that evolutions starting from a plain superposition of individual boosted boson-star spacetimes are vulnerable to significant unphysical artefacts. These difficulties can be overcome with a simple modification of the initial data suggested in [PRD 99 (2018) 044046] for collisions of oscillatons. While we specifically consider massive complex scalar field boson star models up to a 6th-order-polynomial potential, we argue that this vulnerability is universal and present in other kinds of exotic compact systems and hence needs to be addressed.
arXiv comment28 pages, 9 figures, submitted to Classical Quantum Gravity
References in corpus (67)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
- GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
- The Dynamics of General Relativity
- Tests of general relativity with GW150914
- Evolution of Binary Black Hole Spacetimes
- Testing General Relativity with Present and Future Astrophysical Observations
- Accurate Evolutions of Orbiting Black-Hole Binaries Without Excision
- Gravitational wave extraction from an inspiraling configuration of merging black holes
- On the Numerical Integration of Einstein's Field Equations
- A gravitational-wave standard siren measurement of the Hubble constant
- Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1
- Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog
- Relativistic theory of tidal Love numbers
- Black holes, gravitational waves and fundamental physics: a roadmap
- Dynamical Boson Stars
- Evolutions in 3D numerical relativity using fixed mesh refinement
- Tests of General Relativity with GW170817
- The evolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates of LIGO/Virgo binary black holes
- A Fast Apparent-Horizon Finder for 3-Dimensional Cartesian Grids in Numerical Relativity
- Proca Stars: gravitating Bose-Einstein condensates of massive spin 1 particles
- Conformal and covariant formulation of the Z4 system with constraint-violation damping
- Constraint violation in free evolution schemes: comparing BSSNOK with a conformal decomposition of Z4
- Hierarchical mergers of stellar-mass black holes and their gravitational-wave signatures
- A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo
- 3+1 Formalism and Bases of Numerical Relativity
- GW190521 as a merger of Proca stars: a potential new vector boson of eV
- Rotating Boson Stars and Q-Balls
- Binary black-hole evolutions of excision and puncture data
- 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
- Astrophysical signatures of boson stars: quasinormal modes and inspiral resonances
- Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing
- Finding Apparent Horizons in Numerical Relativity
- Dynamical Evolution of Boson Stars II: Excited States and Self-Interacting Fields
- Boson Stars: Alternatives to primordial black holes?
- Non-linear dynamics of spinning bosonic stars: formation and stability
- GRChombo : Numerical Relativity with Adaptive Mesh Refinement
- Orbital Dynamics of Binary Boson Star Systems
- Rotating Boson Stars and Q-Balls II: Negative Parity and Ergoregions
- High-velocity collision of two black holes
- On the final fate of compact boson star mergers
- Asymptotically flat spinning scalar, Dirac and Proca stars
- Stability of rotating scalar boson stars with nonlinear interactions
- Stable Phases of Boson Stars
- The mass gap, the spin gap, and the origin of merging binary black holes
- -Boson stars
- Exploring New Physics Frontiers Through Numerical Relativity
- The numerical relativity breakthrough for binary black holes
- Gravitational Wave Emission from Collisions of Compact Scalar Solitons
- On the dynamical bar-mode instability in spinning bosonic stars
- Is super-Planckian physics visible? -- Scattering of black holes in 5 dimensions
- Instability of rotating Bose stars
- Lessons for adaptive mesh refinement in numerical relativity
- Boson stars with generic self-interactions
- Excited Boson Stars
- Testing general relativity with gravitational-wave catalogs: the insidious nature of waveform systematics
- Compact Boson Stars
- Distinguishing black-hole spin-orbit resonances by their gravitational wave signatures. II: Full parameter estimation
- Modeling gravitational waves from exotic compact objects
- Boson Stars: Early History and Recent Prospects
- Multi-oscillating Boson Stars
- The high-energy collision of black holes in higher dimensions
Cited by in corpus (8)
- Dynamical Boson Stars
- Impact of the wave-like nature of Proca stars on their gravitational-wave emission
- Black Hole Binaries in Cubic Horndeski Theories
- CTTK: A new method to solve the initial data constraints in numerical relativity
- Unequal-mass boson-star binaries: Initial data and merger dynamics
- Local Continuity of Angular Momentum and Noether Charge for Matter in General Relativity
- Gravitational wave constraints on extended dark matter structures
- Piercing of a boson star by a black hole