Equatorial extreme-mass-ratio inspirals in Kerr black holes with scalar hair spacetimes
arXiv:2108.11658 · doi:10.1103/PhysRevD.105.044036
Abstract
In this work we analyze some judiciously chosen solutions of Kerr Black Holes with Scalar Hair (KBHsSH) of special interest for Gravitational Wave (GW) events originated from Extreme Mass Ratio Inspirals (EMRIs). Because of the off-center distribution of energy density, these spacetimes are warped in such a way that not all metric functions behave monotonically on the equatorial plane as in the exterior region of Kerr black holes (KBHs). This has great impact on the orbital parameters, which in turn affects the imprints on signals descendant from EMRIs in a adiabatic evolution. By investigating circular obit parameters, we unveil what qualitative features could be present in the signals that are new and distinct compared to KBHs, and we evolve some inspirals by employing the usual quadrupole formula approximation. We show that the frequencies of the emitted signals behave nonmonotonically, i.e. they can backward chirp, and for some particular cases they can become arbitrarily small, falling below LISA's sensibility range. Finally, we present two sets of waveforms produced by a noncircular EMRI in which the compact object (CO) follows a type of geodesic motion typically present in spacetimes with a static ring (SR), in which the compact object is periodically momentarily at rest.
References in corpus (40)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
- Kerr black holes with scalar hair
- Observation of gravitational waves from two neutron star-black hole coalescences
- Shadows of Kerr black holes with scalar hair
- Prospects for Fundamental Physics with LISA
- Zoom & Whirl: Eccentric equatorial orbits around spinning black holes and their evolution under gravitational radiation reaction
- Mapping spacetimes with LISA: inspiral of a test-body in a `quasi-Kerr' field
- "Kludge" gravitational waveforms for a test-body orbiting a Kerr black hole
- Into the lair: gravitational-wave signatures of dark matter
- Rotating Boson Stars and Q-Balls
- Post-Newtonian, Quasi-Circular Binary Inspirals in Quadratic Modified Gravity
- Shadows of Kerr black holes with and without scalar hair
- Floating and sinking: the imprint of massive scalars around rotating black holes
- Extreme- and Intermediate-Mass Ratio Inspirals in Dynamical Chern-Simons Modified Gravity
- Astrophysical signatures of boson stars: quasinormal modes and inspiral resonances
- Spinning Q-Balls
- Approximating the inspiral of test bodies into Kerr black holes
- The Fast and the Fiducial: Augmented kludge waveforms for detecting extreme-mass-ratio inspirals
- Detecting fundamental fields with LISA observations of gravitational waves from extreme mass-ratio inspirals
- New Constraint on Scalar Gauss-Bonnet Gravity and a Possible Explanation for the Excess of the Orbital Decay Rate in a Low-Mass X-ray Binary
- Detecting scalar fields with Extreme Mass Ratio Inspirals
- Models of rotating boson stars and geodesics around them: new type of orbits
- Testing Chern-Simons Modified Gravity with Gravitational-Wave Detections of Extreme-Mass-Ratio Binaries
- Gravitational-Wave Signature of an Inspiral into a Supermassive Horizonless Object
- Iron K line of Kerr black holes with scalar hair
- Gravitational waves from extreme mass-ratio inspirals in Dynamical Chern-Simons gravity
- Gravitational-wave glitches in chaotic extreme-mass-ratio inspirals
- Effective stability against superradiance of Kerr black holes with synchronised hair
- Extreme mass-ratio inspirals around a spinning horizonless compact object
- Scalar Hairy Black Holes in Four Dimensions are Unstable
- Comparing timelike geodesics around a Kerr black hole and a boson star
- Equatorial timelike circular orbits around generic ultracompact objects
- Circular Orbits Structure and Thin Accretion Disks around Kerr Black Holes with Scalar Hair
- Static Orbits in Rotating Spacetimes
- Constraining Black Holes with Light Boson Hair and Boson Stars using Epicyclic Frequencies and QPOs
- Parametrizing and constraining scalar corrections to general relativity
- Rotating tensor-multiscalar black holes with two scalars
- Rotating tensor-multi-scalar solitons
- Magnetized accretion disks around Kerr black holes with scalar hair -- Nonconstant angular momentum disks
Cited by in corpus (13)
- Extreme mass-ratio inspirals into black holes surrounded by scalar clouds
- Detecting massive scalar fields with Extreme Mass-Ratio Inspirals
- Equatorial timelike circular orbits around generic ultracompact objects
- Extreme-mass-ratio inspirals into rotating boson stars: nonintegrability, chaos, and transient resonances
- Probing fundamental physics with Extreme Mass Ratio Inspirals: a full Bayesian inference for scalar charge
- Testing gravity with Extreme-Mass-Ratio Inspirals
- The fate of observers in circular motion
- Resonant excitation of eccentricity in spherical extreme-mass-ratio inspirals
- Gravitational odd-parity perturbation of a Horndeski hairy black hole: quasinormal mode and parameter constraint
- Imprints of extra dimensions in eccentric extreme-mass-ratio inspirals gravitational waveforms
- Splitting the Gravitational Atom: Instabilities of Black Holes with Synchronized or Resonant Hair
- There and back again: Outspiraling motion in non-Kerr compact objects
- Extreme mass-ratio inspirals as probes of scalar fields: eccentric equatorial orbits around Kerr black holes