The multipolar structure of rotating boson stars
arXiv:2203.07442 · doi:10.1103/PhysRevD.105.124020
Abstract
The relativistic multipole moments provide a key ingredient to characterize the gravitational field around compact astrophysical objects. They play a crucial role in the description of the orbital evolution of coalescing binary systems and encode valuable information on the nature of the binary's components, which leaves a measurable imprint in their gravitational-wave emission. We present a new study on the multipolar structure of a class of arbitrarily spinning boson stars with quartic self-interactions in the large coupling limit, where these solutions are expected to be stable. Our results strengthen and extend previous numerical analyses, showing that even for the most compact configurations the multipolar structure deviates significantly from that of a Kerr black hole. We provide accurate data for the multipole moments as functions of the object's mass and spin, which can be directly used to construct inspiral waveform approximants and to perform parameter estimations and searches for boson star binaries.
arXiv comment11+3 pages, 11 figures, data for the quadrupole and octupole moments available at https://web.uniroma1.it/gmunu
References in corpus (37)
- Testing General Relativity with Present and Future Astrophysical Observations
- GW190521: A Binary Black Hole Merger with a Total Mass of
- Testing the nature of dark compact objects: a status report
- Kerr black holes with scalar hair
- Black holes, gravitational waves and fundamental physics: a roadmap
- Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
- I-Love-Q Relations in Neutron Stars and their Applications to Astrophysics, Gravitational Waves and Fundamental Physics
- Gravitational Wave Tests of General Relativity with Ground-Based Detectors and Pulsar Timing Arrays
- Approximate Universal Relations for Neutron Stars and Quark Stars
- Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum
- Testing General Relativity with Low-Frequency, Space-Based Gravitational-Wave Detectors
- Proca Stars: gravitating Bose-Einstein condensates of massive spin 1 particles
- Kerr black holes with Proca hair
- Using LISA EMRI sources to test off-Kerr deviations in the geometry of massive black holes
- Testing the black hole "no-hair" hypothesis
- GW190521 as a merger of Proca stars: a potential new vector boson of eV
- Ergoregion instability of ultra-compact astrophysical objects
- 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
- Testing the binary black hole nature of a compact binary coalescence
- Revising the multipole moments of numerical spacetimes, and its consequences
- Hunting for Dark Particles with Gravitational Waves
- Non-linear dynamics of spinning bosonic stars: formation and stability
- Kerr black holes with self-interacting scalar hair: hairier but not heavier
- Effectively universal behavior of rotating neutron stars in general relativity makes them even simpler than their Newtonian counterparts
- Orbital Dynamics of Binary Boson Star Systems
- Quadrupole moments of rotating neutron stars and strange stars
- Distinguishing fuzzballs from black holes through their multipolar structure
- Stability of rotating scalar boson stars with nonlinear interactions
- Gravitational waves and kicks from the merger of unequal mass, highly compact boson stars
- Gravitational Waves from Dark Boson Star binary mergers
- On the dynamical bar-mode instability in spinning bosonic stars
- The multipolar structure of fuzzballs
- Rotating Axion Boson Stars
- Gravitational-wave detectors as particle-physics laboratories: Constraining scalar interactions with a coherent inspiral model of boson-star binaries
- Testing the Kerr nature of intermediate-mass and supermassive black hole binaries using spin-induced multipole moment measurements
- Spinning boson stars and hairy black holes with non-minimal coupling
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- Universal relations for rotating Boson Stars