Confronting sound speed resonance with pulsar timing arrays

Abstract

The stochastic signal detected by pulsar timing arrays (PTAs) has raised great interest in understanding its physical origin. Assuming the signal is a cosmological gravitational-wave background produced by overly large primordial curvature perturbations, we investigate the sound speed resonance effect with an oscillatory behavior using the combined PTA data from NANOGrav 15-yr data set, PPTA DR3, and EPTA DR2. We find that the stochastic signal can be explained by the induced gravitational waves sourced by the sound speed resonance mechanism, with the oscillation frequency $f_{\ast }\in [1.51,4.90]\times 10^{-7}$Hz and the start time of oscillation $|{\tau }_0|\in [2.05,106]\times 10^7$s

arXiv comment19 pages, 3 figures, 1 table

References in corpus (102)

• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• k-Inflation
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• Search for an isotropic gravitational-wave background with the Parkes Pulsar Timing Array
• Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
• Bilby: A user-friendly Bayesian inference library for gravitational-wave astronomy
• Perturbations in k-inflation
• Primordial Black Holes as Dark Matter
• The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• Primordial Black Holes - Perspectives in Gravitational Wave Astronomy -
• Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
• The cosmological gravitational wave background from primordial density perturbations
• Semianalytic Calculation of Gravitational Wave Spectrum Nonlinearly Induced from Primordial Curvature Perturbations
• Primordial black holes from single field models of inflation
• Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO--Virgo gravitational-wave transient catalogue
• Primordial black hole constraints for extended mass functions
• Gravitational Waves Induced by non-Gaussian Scalar Perturbations
• Gravitational wave background as a probe of the primordial black hole abundance
• Threshold of primordial black hole formation
• Features of heavy physics in the CMB power spectrum
• The NANOGrav 15-year Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational Wave Background
• A Cosmological Signature of the SM Higgs Instability: Gravitational Waves
• The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
• Computations of primordial black hole formation
• The second data release from the European Pulsar Timing Array I. The dataset and timing analysis
• NANOGrav Hints to Primordial Black Holes as Dark Matter
• Primordial black hole formation in the early universe: critical behaviour and self-similarity
• Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
• Damping of Tensor Modes in Cosmology
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Primordial black hole formation in the radiative era: investigation of the critical nature of the collapse
• Did NANOGrav see a signal from primordial black hole formation?
• Inflationary primordial black holes for the LIGO gravitational wave events and pulsar timing array experiments
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• The Parkes Pulsar Timing Array Third Data Release
• The recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities
• Two populations of LIGO-Virgo black holes
• Signatures of primordial black hole dark matter
• Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments
• Pulsar Timing Array Constraints on Primordial Black Holes with NANOGrav 11-Year Data Set
• Effective theories of single field inflation when heavy fields matter
• Primordial Black Holes from Sound Speed Resonance during Inflation
• The GW190521 Mass Gap Event and the Primordial Black Hole Scenario
• Primordial Black Holes from Inflation with Nonminimal Derivative Coupling
• Merger Rate Distribution of Primordial-Black-Hole Binaries
• NANOGrav Signal from the End of Inflation and the LIGO Mass and Heavier Primordial Black Holes
• Primordial black holes and gravitational waves from resonant amplification during inflation
• Scalar Induced Gravitational Waves in Different Gauges
• Distinguishing Primordial Black Holes from Astrophysical Black Holes by Einstein Telescope and Cosmic Explorer
• Primordial black holes and gravitational waves from parametric amplification of curvature perturbations
• Cosmological Background Interpretation of Pulsar Timing Array Data
• When Primordial Black Holes from Sound Speed Resonance Meet a Stochastic Background of Gravitational Waves
• Log-dependent slope of scalar induced gravitational waves in the infrared regions
• The second data release from the European Pulsar Timing Array: IV. Implications for massive black holes, dark matter and the early Universe
• Stochastic Gravitational-Wave Background from Binary Black Holes and Binary Neutron Stars and Implications for LISA
• Probing the equation of state of the early Universe with pulsar timing arrays
• Limits on scalar-induced gravitational waves from the stochastic background by pulsar timing array observations
• Primordial black holes from sound speed resonance in the inflaton-curvaton mixed scenario
• Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
• Analytical thresholds for black hole formation in general cosmological backgrounds
• Probing Primordial-Black-Hole Dark Matter with Scalar Induced Gravitational Waves
• Pulsar Timing Array Constraints on the Induced Gravitational Waves
• Primordial black holes and secondary gravitational waves from inflationary model with a non-canonical kinetic term
• Have pulsar timing array methods detected a cosmological phase transition?
• Effects of the surrounding primordial black holes on the merger rate of primordial black hole binaries
• The Detected Stochastic Gravitational Waves and Subsolar-Mass Primordial Black Holes
• Confronting the primordial black hole scenario with the gravitational-wave events detected by LIGO-Virgo
• Implications for the Supermassive Black Hole Binaries from the NANOGrav 15-year Data Set
• Looking at the NANOGrav Signal Through the Anthropic Window of Axion-Like Particles
• Primordial Black Holes from Cosmic Domain Walls
• Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves
• Effects of the merger history on the merger rate density of primordial black hole binaries
• Constraints on primordial curvature power spectrum with pulsar timing arrays
• Merger rate distribution of primordial black hole binaries with electric charges
• The merger history of primordial-black-hole binaries
• Primordial black holes and oscillating gravitational waves in slow-roll and slow-climb inflation with an intermediate non-inflationary phase
• Search for the Gravitational-wave Background from Cosmic Strings with the Parkes Pulsar Timing Array Second Data Release
• Dirac-Born-Infeld realization of sound speed resonance mechanism for primordial black holes
• Translating nano-Hertz gravitational wave background into primordial perturbations taking account of the cosmological QCD phase transition
• Primordial black holes and secondary gravitational waves from the Higgs field
• Cosmological Interpretation for the Stochastic Signal in Pulsar Timing Arrays
• Did we hear the sound of the Universe boiling? Analysis using the full fluid velocity profiles and NANOGrav 15-year data
• Constraining the Polarization of Gravitational Waves with the Parkes Pulsar Timing Array Second Data Release
• Search for Stochastic Gravitational-Wave Background from Massive Gravity in the NANOGrav 12.5-Year Data Set
• Constraints on primordial curvature spectrum from primordial black holes and scalar-induced gravitational waves
• Primordial black holes and scalar-induced gravitational waves from the generalized Brans-Dicke theory
• Pulsar timing residual induced by ultralight tensor dark matter
• Constraining the Merger History of Primordial-Black-Hole Binaries from GWTC-3
• Constraining ultralight vector dark matter with the Parkes Pulsar Timing Array second data release
• Searching for Isotropic Stochastic Gravitational-Wave Background in the International Pulsar Timing Array Second Data Release
• Footprints of Axion-Like Particle in Pulsar Timing Array Data and James Webb Space Telescope Observations
• Constraints on Primordial-black-hole Population and Cosmic Expansion History from GWTC-3
• NANOGrav signal and LIGO-Virgo Primordial Black Holes from the Higgs field
• Testing primordial black hole and measuring the Hubble constant with multiband gravitational-wave observations
• Can the gravitational wave background feel wiggles in spacetime?
• Gravitational and electromagnetic radiation from binary black holes with electric and magnetic charges: Hyperbolic orbits on a cone
• Towards a reliable reconstruction of the power spectrum of primordial curvature perturbation on small scales from GWTC-3
• Testing Primordial Black Holes with multi-band observations of the stochastic gravitational wave background
• Probing the high temperature symmetry breaking with gravitational waves from domain walls
• Primordial magnetic field as a common solution of nanohertz gravitational waves and the Hubble tension
• Tracking the origin of black holes with the stochastic gravitational wave background popcorn signal

Cited by in corpus (35)

• Probing the equation of state of the early Universe with pulsar timing arrays
• Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
• Implications for the Supermassive Black Hole Binaries from the NANOGrav 15-year Data Set
• Scalar induced gravitational waves in light of Pulsar Timing Array data
• Constraints on primordial curvature power spectrum with pulsar timing arrays
• Induced Gravitational Wave interpretation of PTA data: a complete study for general equation of state
• Simultaneously probing the sound speed and equation of state of the early Universe with pulsar timing arrays
• Model-independent reconstruction of the primordial curvature power spectrum from PTA data
• Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation
• Probing the speed of scalar-induced gravitational waves with pulsar timing arrays
• Complete analysis of the background and anisotropies of scalar-induced gravitational waves: primordial non-Gaussianity $f_{\mathrm{NL}}$ and $g_{\mathrm{NL}}$ considered
• NANOGrav hints for first-order confinement-deconfinement phase transition in different QCD-matter scenarios
• Bounds on Ultralight Dark Matter from NANOGrav
• Search for Non-Tensorial Gravitational-Wave Backgrounds in the NANOGrav 15-Year Data Set
• Enhancement of gravitational waves at Q-ball decay including non-linear density perturbations
• Constraining the Graviton Mass with the NANOGrav 15-Year Data Set
• Constraints on holographic QCD phase transitions from PTA observations
• Unraveling the early universe's equation of state and primordial black hole production with PTA, BBN, and CMB observations
• Prospects for Taiji to detect a gravitational-wave background from cosmic strings
• Can we distinguish the adiabatic fluctuations and isocurvature fluctuations with pulsar timing arrays?
• Scalar induced gravitational waves in metric teleparallel gravity with the Nieh-Yan term
• Angular bispectrum and trispectrum of scalar-induced gravitational waves: all contributions from primordial non-Gaussianity $f_{\mathrm{NL}}$ and $g_{\mathrm{NL}}$
• Constraints on Non-Gaussian primordial curvature perturbation from the LIGO-Virgo-KAGRA third observing run
• Constraining string cosmology with the gravitational-wave background using the NANOGrav 15-year data set
• Negative non-Gaussianity as a salvager for PBHs with PTAs in bounce
• Detecting a Gravitational-Wave Background from Inflation with Null Energy Condition Violation: Prospects for Taiji
• Interplay between the muon $g-2$ anomaly and the PTA nHZ gravitational waves from domain walls in next-to minimal supersymmetric standard model
• Constraints on ultra-slow-roll inflation with the NANOGrav 15-Year Dataset
• Confronting primordial black holes with LIGO-Virgo-KAGRA and the Einstein Telescope
• Search for a Gravitational-Wave Background from Sound Speed Resonance from Advanced LIGO and Advanced Virgo's First Three Observing Runs
• Implications of pulsar timing arrays for Gauss-Bonnet Inflation
• Primordial Black Holes from Spatially Varying Cosmological Constant Induced by Field Fluctuations in Extra Dimensions
• Distinguishing gravity theories with networks of space-based gravitational-wave detectors
• Measuring the speed of scalar induced gravitational waves from observations
• Purely quadratic non-Gaussianity from tachyonic instability: Primordial black holes and scalar-induced gravitational waves