Gravitational Wave Emission from Collisions of Compact Scalar Solitons
arXiv:1802.06733 · doi:10.1103/PhysRevD.99.044046
Abstract
We numerically investigate the gravitational waves generated by the head-on collision of equal-mass, self-gravitating, real scalar field solitons (oscillatons) as a function of their compactness . We show that there exist three different possible outcomes for such collisions: (1) an excited stable oscillaton for low , (2) a merger and formation of a black-hole for intermediate , and (3) a pre-merger collapse of both oscillatons into individual black-holes for large . For (1), the excited, aspherical oscillaton continues to emit gravitational waves. For (2), the total energy in gravitational waves emitted increases with compactness, and possesses a maximum which is greater than that from the merger of a pair of equivalent mass black-holes. The initial amplitudes of the quasi-normal modes in the post-merger ring-down in this case are larger than that of corresponding mass black-holes -- potentially a key observable to distinguish black-hole mergers with their scalar mimics. For (3), the gravitational wave output is indistinguishable from a similar mass, black-hole--black-hole merger.
8 Pages, 8 figures, movies : https://www.youtube.com/playlist?list=PLSkfizpQDrcahgvc5TvBk5qtXAzkSyHPe
References in corpus (6)
- Ultralight scalars as cosmological dark matter
- Echoes of ECOs: gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale
- Gravitational wave searches for ultralight bosons with LIGO and LISA
- Gravitational Wave Signatures of Highly Compact Boson Star Binaries
- Head-on collisions of boson stars
- Aligned Natural Inflation: Monodromies of two Axions
Cited by in corpus (61)
- Testing the nature of dark compact objects: a status report
- Wave Dark Matter
- Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
- Advances in Space Quantum Communications
- Gravitational waves from neutron star mergers and their relation to the nuclear equation of state
- Detecting High-Frequency Gravitational Waves with Microwave Cavities
- Boson Stars and Oscillatons: A Review
- New insights into the formation and growth of boson stars in dark matter halos
- The response of ultralight dark matter to supermassive black holes and binaries
- Gravitational wave probes of dark matter: challenges and opportunities
- GRChombo: An adaptable numerical relativity code for fundamental physics
- Formation, Gravitational Clustering and Interactions of Non-relativistic Solitons in an Expanding Universe
- Gravitational waves and kicks from the merger of unequal mass, highly compact boson stars
- Constraining black hole mimickers with gravitational wave observations
- Stirred and shaken: dynamical behavior of boson stars and dark matter cores
- Impact of multiple modes on the black-hole superradiant instability
- Probing the Nature of Black Holes: Deep in the mHz Gravitational-Wave Sky
- Lessons for adaptive mesh refinement in numerical relativity
- Polarized Vector Oscillons
- Ultralight bosons for strong gravity applications from simple Standard Model extensions
- Malaise and remedy of binary boson-star initial data
- Electromagnetic Bursts from Mergers of Oscillons in Axion-like Fields
- Boson Star from Repulsive Light Scalars and Gravitational Waves
- Radiation from Global Topological Strings using Adaptive Mesh Refinement: Methodology and Massless Modes
- Oscillon formation during inflationary preheating with general relativity
- Beyond Schrödinger-Poisson: Nonrelativistic Effective Field Theory for Scalar Dark Matter
- Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
- The Fate of Dense Scalar Stars
- Investigating the relation between gravitational wave tests of general relativity
- CTTK: A new method to solve the initial data constraints in numerical relativity
- Gravitational effects on oscillon lifetimes
- Unequal-mass boson-star binaries: Initial data and merger dynamics
- The quasi normal modes of growing dirty black holes
- Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
- Soliton Merger Rates and Enhanced Axion Dark Matter Decay
- Probing Boson Stars with Extreme Mass Ratio Inspirals
- The Gravitational Afterglow of Boson Stars
- Two-Scalar Bose-Einstein Condensates: From Stars to Galaxies
- Searching for High Frequency Gravitational Waves with Phonons
- Yang-Mills stars in Higgsed non-Abelian dark matter
- Generic initial data for binary boson stars
- Electromagnetic instability of compact axion stars
- Black hole formation in relativistic Oscillaton collisions
- Electromagnetic emission from axionic boson star collisions
- Oscillon formation from preheating in asymmetric inflationary potentials
- Boson star head-on collisions with constraint-violating and constraint-satisfying initial data
- A review on radiation of oscillons and oscillatons
- Phenomenology of wavelike vector dark matter nonminimally coupled to gravity
- Prospects of Probing Dark Matter Condensates with Gravitational Waves
- Hair is complicated: Gravitational waves from stable and unstable boson-star mergers
- i-SPin 2: An integrator for general spin-s Gross-Pitaevskii systems
- Information Missing Puzzle, Where Is Hawking's Error?
- Exact Inner Metric and Microscopic State of AdS-Schwarzschld BHs
- Parametric-resonance based phenomenology of gravitating axion configurations
- Multimessenger signals from compact axion star mergers
- Stability and collisions of excited spherical boson stars: glimpses of chains and rings
- Multi-Messenger Astrophysics Opportunities with Stellar-Mass Binary Black Hole Mergers
- Massive boson stars: Stability and GW emission in head-on mergers
- Challenging theories of gravitation: dark matter, compact objects and gravitational waves
- Constraint-satisfying binary boson star initial data via XCFC
- Polarized solitons in higher-spin wave dark matter