Quadrupole Moments of Rapidly Rotating Compact Objects in Dilatonic Einstein-Gauss-Bonnet Theory

Abstract

We consider rapidly rotating black holes and neutron stars in dilatonic Einstein-Gauss-Bonnet (EGBd) theory and determine their quadrupole moments, which receive a contribution from the dilaton. The quadrupole moment of EGBd black holes can be considerably larger than the Kerr value. For neutron stars, the universality property of the $\hat{I}$-$\hat{Q}$ relation between the scaled moment of inertia and the scaled quadrupole moment appears to extend to EGBd theory.

5 pages, 4 figures

References in corpus (26)

• The Confrontation between General Relativity and Experiment
• Dilatonic Black Holes in Higher Curvature String Gravity
• Rotating Stars in Relativity
• I-Love-Q
• Gravitational Wave Tests of General Relativity with Ground-Based Detectors and Pulsar Timing Arrays
• Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum
• Wormholes in Dilatonic Einstein-Gauss-Bonnet Theory
• Testing General Relativity with Low-Frequency, Space-Based Gravitational-Wave Detectors
• Rotating Black Holes in Dilatonic Einstein-Gauss-Bonnet Theory
• Are black holes in alternative theories serious astrophysical candidates? The case for Einstein-Dilaton-Gauss-Bonnet black holes
• Wormholes as Black Hole Foils
• Charged black holes in effective string theory
• Slowly-Rotating Black Holes in Einstein-Dilaton-Gauss-Bonnet Gravity: Quadratic Order in Spin Solutions
• Slowly rotating black holes in alternative theories of gravity
• Stable Lorentzian Wormholes in Dilatonic Einstein-Gauss-Bonnet Theory
• Analytical representations of unified equations of state of neutron-star matter
• Compact stars in alternative theories of gravity. Einstein-Dilaton-Gauss-Bonnet gravity
• Revising the multipole moments of numerical spacetimes, and its consequences
• Effective No-Hair Relations for Neutron Stars and Quark Stars: Relativistic Results
• I-Q relation for rapidly rotating neutron stars
• Rapidly rotating neutron stars in scalar-tensor theories of gravity
• Breakdown of I-Love-Q universality in rapidly rotating relativistic stars
• 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
• Rotating Hairy Black Holes
• Corrections and Comments on the Multipole Moments of Axisymmetric Electrovacuum Spacetimes
• Global solutions for higher-dimensional stretched small black holes

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• Testing General Relativity with Present and Future Astrophysical Observations
• New Gauss-Bonnet black holes with curvature induced scalarization in the extended scalar-tensor theories
• Approximate Universal Relations for Neutron Stars and Quark Stars
• Extreme Gravity Tests with Gravitational Waves from Compact Binary Coalescences: (II) Ringdown
• Maximum mass, moment of inertia and compactness of relativistic stars
• Extreme Gravity Tests with Gravitational Waves from Compact Binary Coalescences: (I) Inspiral-Merger
• Testing the black hole "no-hair" hypothesis
• Rotating Stars in Relativity
• Rotating black holes in Einstein-Dilaton-Gauss-Bonnet gravity with finite coupling
• Radial perturbations of the scalarized EGB black holes
• Spinning black holes in Einstein--Gauss-Bonnet--dilaton theory: non-perturbative solutions
• Quasinormal modes of Einstein-Gauss-Bonnet-dilaton black holes
• Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
• Spinning and excited black holes in Einstein-scalar-Gauss-Bonnet theory
• Parameterized Post-Einsteinian Gravitational Waveforms in Various Modified Theories of Gravity
• Multipolar universal relations between f-mode frequency and tidal deformability of compact stars
• Axial perturbations of the scalarized Einstein-Gauss-Bonnet black holes
• Slowly rotating black hole solutions in Horndeski gravity
• Novel Einstein-Scalar-Gauss-Bonnet Wormholes without Exotic Matter
• Rapidly Rotating Neutron Stars in Dilatonic Einstein-Gauss-Bonnet Theory
• Rapidly rotating neutron stars with a massive scalar field - structure and universal relations
• Neutron stars in Horndeski gravity
• I-Love-Q anisotropically: Universal relations for compact stars with scalar pressure anisotropy
• Gauss-Bonnet black holes with a massive scalar field
• Rotating Ellis Wormholes in Four Dimensions
• Relativistic stars in scalar-tensor theories with disformal coupling
• Polar quasinormal modes of the scalarized Einstein-Gauss-Bonnet black holes
• Neutron star solutions with curvature induced scalarization in the extended Gauss-Bonnet scalar-tensor theories
• Geometry of Spinning Ellis Wormholes
• Probing the Internal Composition of Neutron Stars with Gravitational Waves
• Science with the TianQin Observatory: Preliminary Results on Testing the No-hair Theorem with EMRI
• Universal I-Q relations for rapidly rotating neutron and strange stars in scalar-tensor theories
• Tidal Love numbers of neutron stars in $f(R)$ gravity
• The I-Q relations for rapidly rotating neutron stars in $f(R)$ gravity
• Speed of gravitational waves and black hole hair
• Geodesic models of quasi-periodic-oscillations as probes of quadratic gravity
• An analytical approximation for the Einstein-dilaton-Gauss-Bonnet black hole metric
• Multipole moments in scalar-tensor theory of gravity
• Compact objects in Horndeski gravity
• Tidal Deformabilities of Neutron Stars in scalar-Gauss-Bonnet Gravity and Their Applications to Multimessenger Tests of Gravity
• Quasinormal modes of compact objects in alternative theories of gravity
• Gravitomagnetic tidal effects in gravitational waves from neutron star binaries
• Post-Tolman-Oppenheimer-Volkoff formalism for relativistic stars
• Moment of inertia -- compactness universal relations in scalar-tensor theories and ${\mathcal{R}}^2$ gravity
• Spontaneously vectorized Einstein-Gauss-Bonnet black holes
• Axial quasi-normal modes of Einstein-Gauss-Bonnet-dilaton neutron stars
• Improved Universality in the Neutron Star Three-Hair Relations
• I-Love-Q Relations for Neutron Stars in dynamical Chern Simons Gravity
• Oscillation modes of rapidly rotating neutron stars in scalar-tensor theories of gravity
• Properties of ultra-compact particle-like solutions in Einstein-scalar-Gauss-Bonnet theories
• Wormholes in Einstein-scalar-Gauss-Bonnet theories with a scalar self-interaction potential
• Moment of inertia - mass universal relations for neutron stars in scalar-tensor theory with self-interacting massive scalar field
• Inspiral gravitational waveforms from compact binary systems in Horndeski gravity
• Black holes in Einstein-Gauß-Bonnet-dilaton theory
• Multi-scalar Gauss-Bonnet gravity -- hairy black holes and scalarization
• Universality and stationarity of the I-Love relation for self-bound stars
• Quasinormal modes of rapidly rotating Einstein-Gauss-Bonnet-dilaton black holes
• Calculation of multipole moments of axistationary electrovacuum spacetimes
• Instability of Black Holes with a Gauss-Bonnet Term
• Constraining scalarization in scalar-Gauss-Bonnet gravity through binary pulsars
• Astrophysical applications of the post-Tolman-Oppenheimer-Volkoff formalism
• Can the Slow-Rotation Approximation be used in Electromagnetic Observations of Black Holes?
• Universal Relations for rapidly rotating neutron stars using supervised machine-learning techniques
• Differentially rotating scalarized neutron stars with realistic post-merger profile
• The exterior spacetime of relativistic stars in scalar-Gauss-Bonnet gravity
• Quasinormal mode spectrum of rotating black holes in Einstein-Gauss-Bonnet-dilaton theory
• The power of binary pulsars in testing Gauss-Bonnet gravity
• Neutron Stars In $f(R,T)$ Theory: Slow Rotation Approximation
• Four-Hair Relations for Differentially Rotating Neutron Stars in the Weak-Field Limit
• Stability of neutron stars in Horndeski theories with Gauss-Bonnet couplings
• Compact Objects in Alternative Gravities
• Slowly rotating topological neutron stars -- universal relations and epicyclic frequencies
• Axial perturbations of hairy Gauss-Bonnet black holes with massive self-interacting scalar field
• Dilaton Field Released under Collision of Dilatonic Black Holes with Gauss-Bonnet Term
• Innermost stable circular orbits of neutron stars in dilatonic-Einstein-Gauss-Bonnet theory
• Generalized Ellis-Bronnikov wormhole solution in the scalar-Einstein-Gauss-Bonnet $4d$ gravitational model
• I-Love irrotationally
• Massive scalar clouds and black hole spacetimes in Gauss-Bonnet gravity
• Scalarized Black Holes