Ultra long lived quasinormal modes of neutron stars in massive scalar-tensor gravity

Abstract

The spectrum of frequencies and characteristic times that compose the ringdown phase of gravitational waves emitted by neutron stars carries information about the matter content (the equation of state) and the underlying theory of gravity. Typically, modified theories of gravity introduce additional degrees of freedom/fields, such as scalars, which result in new families of modes composing the ringdown spectrum. Simple but physically promising candidates are scalar-tensor theories, which effectively introduce an additional massive scalar field (i.e. an ultra-light boson) that couples non-minimally to gravity, resulting in scalarized neutron stars. Here we present the first calculation of the full ringdown spectrum in such theories. We show that the ringdown spectrum of neutron stars with ultra-light bosons is much richer and fundamentally different from the spectrum in general relativity and that it possesses propagating ultra long lived modes.

arXiv comment7 pages, 3 figures. v2: Generalisation of the results to generic massive scalar-tensor gravity; improvements in the discussion, figures and references; main results unchanged; matches published version

References in corpus (56)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The Cosmological Constant and Dark Energy
• f(R) Theories Of Gravity
• Multi-messenger Observations of a Binary Neutron Star Merger
• GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
• GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
• Quasinormal modes of black holes and black branes
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Quasi-Normal Modes of Stars and Black Holes
• Quasinormal modes of black holes: from astrophysics to string theory
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• Black holes, gravitational waves and fundamental physics: a roadmap
• Towards gravitational-wave asteroseismology
• Further stable neutron star models from f(R) gravity
• Gravitational wave searches for ultralight bosons with LIGO and LISA
• Extreme Gravity Tests with Gravitational Waves from Compact Binary Coalescences: (II) Ringdown
• The gravity lagrangian according to solar system experiments
• Gravitational waves and pulsating stars: What can we learn from future observations?
• Modeling the complete gravitational wave spectrum of neutron star mergers
• Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
• Maximal neutron star mass and the resolution of hyperon puzzle in modified gravity
• GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences
• Gravitational Wave asteroseismology revisited
• Gravitational radiation from compact binary systems in the massive Brans-Dicke theory of gravity
• Gravitational waves and nonaxisymmetric oscillation modes in mergers of compact object binaries
• The inverse problem for pulsating neutron stars: A ``fingerprint analysis'' for the supranuclear equation of state
• Nonperturbative models of quark stars in $f(R)$ gravity
• The realistic models of relativistic stars in f(R) = R + alpha R^2 gravity
• Slowly rotating neutron and strange stars in $R^2$ gravity
• Decay of massive scalar field in a Schwarzschild background
• Non-perturbative and self-consistent models of neutron stars in R-squared gravity
• Probing Strong-Field Scalar-Tensor Gravity with Gravitational Wave Asteroseismology
• Structure of neutron stars in R-squared gravity
• Rapidly rotating neutron stars in $R$-squared gravity
• On the 1/c Expansion of f(R) Gravity
• Stellar Oscillations in Scalar-Tensor Theory of Gravity
• Neutron star mergers as a probe of modifications of general relativity with finite-range scalar forces
• Empirical relations for gravitational-wave asteroseismology of binary neutron star mergers
• New class of quasinormal modes of neutron stars in scalar-tensor gravity
• Spectral classification of gravitational-wave emission and equation of state constraints in binary neutron star mergers
• Long-lived inverse chirp signals from core collapse in massive scalar-tensor gravity
• Numerical solutions of the modified Lane-Emden equation in f(R)-gravity
• Gravitational wave asteroseismology of neutron and strange stars in $R^2$ gravity
• Fresh look at the scalar-tensor theory of gravity in Jordan and Einstein frames from undiscussed standpoints
• Quasinormal modes of compact objects in alternative theories of gravity
• Neutron stars in $f(R)$ gravity and scalar-tensor theories
• Phenomenological Relations for Axial Quasi-normal Modes of Neutron Stars with Realistic Equations of State
• Exotic matter influence on the polar quasi-normal modes of neutron stars with equations of state satisfying the $2M_{\odot }$ constraint
• Axial quasi-normal modes of Einstein-Gauss-Bonnet-dilaton neutron stars
• Oscillation modes of rapidly rotating neutron stars in scalar-tensor theories of gravity
• Axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski gravity: spectrum and universal relations for realistic equations of state
• Axial quasi-normal modes of scalarized neutron stars with massive self-interacting scalar field
• Axial quasi-normal modes of neutron stars in $R^2$ gravity
• Axial Quasi-Normal Modes of Scalarized Neutron Stars with Realistic Equations of State
• Notes on the post-Newtonian limit of massive Brans-Dicke theory

Cited by in corpus (25)

• Spontaneous scalarization
• The Science of the Einstein Telescope
• $R^p$ Attractors Static Neutron Star Phenomenology
• Universal Inflationary Attractors Implications on Static Neutron Stars
• Inflationary Attractors Predictions for Static Neutron Stars in the Mass-Gap Region
• Neutron Stars in Scalar-tensor Gravity with Quartic Order Scalar Potential
• Static Neutron Stars Perspective of Quadratic and Induced Inflationary Attractor Scalar-tensor Theories
• Maximal Masses of White Dwarfs for Polytropes in $R^2$ Gravity and Theoretical Constraints
• Stability of relativistic stars with scalar hairs
• Polar Quasinormal Modes of Neutron Stars in Massive Scalar-Tensor Theories
• Highly compact neutron stars and screening mechanisms. I. Equilibrium and stability
• Constraining the equation of state in modified gravity via universal relations
• Uniqueness of the Inflationary Higgs Scalar for Neutron Stars and Failure of non-inflationary Approximations
• Oscillation dynamics of scalarized neutron stars
• Nonlinear dynamics of oscillating neutron stars in scalar-tensor gravity
• Unbiased interpolated neutron-star EoS at finite T for modified gravity studies
• Differentially rotating scalarized neutron stars with realistic post-merger profile
• Compact Objects in Alternative Gravities
• Universal relations for quasinormal modes of neutron stars in $R^2$ gravity
• Neutron Stars in Mimetic Gravity
• Scalar Gravitational Wave Signals from Core Collapse in Massive Scalar-Tensor Gravity with Triple-Scalar Interactions
• On the linear stability of polytropic fluid spheres in $R^2$ gravity
• Axial perturbations of neutron stars with shift symmetric conformal coupling
• $\varphi$-modes of neutron stars in a massless scalar-tensor theory
• Dynamical Chameleon Neutron Stars: stability, radial oscillations and scalar radiation in spherical symmetry