Implications for Pulsar Timing Arrays of Sub-solar Black Hole Detections: From LVK to Einstein Telescope and Cosmic Explorer

Abstract

The detection of compact binary mergers with sub-solar masses at gravitational-wave observatories could mark the groundbreaking discovery of primordial black holes (PBHs). Concurrently, evidence for a nHz stochastic gravitational wave background observed by pulsar timing arrays (PTAs) could suggest a non-astrophysical origin, potentially arising from scalar-induced gravitational waves (SIGW). In this work, we analyze the connection between the two phenomena in the case where they share a common origin: the collapse of large primordial curvature perturbations in the early universe. We focus on sub-solar PBH populations within reach of upcoming experiments, including the current and future runs of LIGO-Virgo-KAGRA as well as the third generation observatories such as the Einstein Telescope and Cosmic Explorer. Using a Bayesian framework with physically motivated priors, we perform a consistent model comparison that incorporates existing astrophysical bounds together with the discovery potential of future detectors. Our analysis lends stronger support for the SIGW interpretation over the astrophysical one, as the narrowed priors place greater weight on the region of highest likelihood. Ultimately, we illustrate that combining PTA data with interferometer searches can deliver correlated evidence for new physics across multiple gravitational-wave bands.

41 pages, 19 figures, 7 tables; matches published version

References in corpus (129)

• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• 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
• LIGO: The Laser Interferometer Gravitational-Wave Observatory
• TEMPO2, a new pulsar timing package. I: Overview
• Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
• The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
• Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
• The cosmological gravitational wave background from primordial density perturbations
• Tempo2, a new pulsar timing package. II: The timing model and precision estimates
• Scientific Objectives of Einstein Telescope
• The stochastic gravitational-wave background from massive black hole binary systems: implications for observations with Pulsar Timing Arrays
• The merger rate of primordial-black-hole binaries
• The NANOGrav 15-year Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational Wave Background
• The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background
• On the evidence for a common-spectrum process in the search for the nanohertz gravitational-wave background with the Parkes Pulsar Timing Array
• White Dwarf Mass Distribution in the SDSS
• Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search
• 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
• Expected properties of the first gravitational wave signal detected with pulsar timing arrays
• Stochastic gravitational waves associated with the formation of primordial black holes
• Calculating the mass spectrum of primordial black holes
• The Threshold for Primordial Black Hole Formation: a Simple Analytic Prescription
• The recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities
• Observational Evidence for Primordial Black Holes: A Positivist Perspective
• Generalised constraints on the curvature perturbation from primordial black holes
• Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments
• Generating PBHs and small-scale GWs in two-field models of inflation
• Primordial Black Holes Confront LIGO/Virgo data: Current situation
• PINT: A Modern Software Package for Pulsar Timing
• Gravitational Waves Induced by Scalar Perturbations with a Lognormal Peak
• The NANOGrav 15-Year Data Set: Detector Characterization and Noise Budget
• Curvature profiles as initial conditions for primordial black hole formation
• Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models
• From inflation to black hole mergers and back again: Gravitational-wave data-driven constraints on inflationary scenarios with a first-principle model of primordial black holes across the QCD epoch
• Constraints on Bosonic Dark Matter From Observations of Old Neutron Stars
• Gauge Independence of Induced Gravitational Waves
• Anatomy of single-field inflationary models for primordial black holes
• Primordial gravitational waves in the nano-Hertz regime and PTA data -- towards solving the GW inverse problem
• Cosmological Background Interpretation of Pulsar Timing Array Data
• Science-Driven Tunable Design of Cosmic Explorer Detectors
• Primordial Black Hole Dark Matter and the LIGO/Virgo observations
• Non-perturbative non-Gaussianity and primordial black holes
• Separate Universes Do Not Constrain Primordial Black Hole Formation
• Probing the equation of state of the early Universe with pulsar timing arrays
• TEMPO2, a new pulsar timing package. III: Gravitational wave simulation
• Limits on scalar-induced gravitational waves from the stochastic background by pulsar timing array observations
• Multiband gravitational-wave event rates and stellar physics
• Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
• Resonant multiple peaks in the induced gravitational waves
• Gravitational Waves from Domain Walls in Pulsar Timing Array Datasets
• NANOGrav results and LIGO-Virgo primordial black holes in axion-like curvaton model
• First-order Phase Transition interpretation of PTA signal produces solar-mass Black Holes
• Effects of particle production during inflation
• PBH formation from spherically symmetric hydrodynamical perturbations: a review
• Effect of nonlinearity between density and curvature perturbations on the primordial black hole formation
• Primordial Black Holes
• No massive black holes in the Milky Way halo
• Have pulsar timing array methods detected a cosmological phase transition?
• Kilobyte Cosmic Birefringence from ALP Domain Walls
• Gravitational Waves from SMBH Binaries in Light of the NANOGrav 15-Year Data
• The Detected Stochastic Gravitational Waves and Subsolar-Mass Primordial Black Holes
• Implications for the Supermassive Black Hole Binaries from the NANOGrav 15-year Data Set
• Implications of Pulsar Timing Array Data for Scalar-Induced Gravitational Waves and Primordial Black Holes: Primordial Non-Gaussianity $f_{\mathrm{NL}}$ Considered
• Approximate gauge independence of the induced gravitational wave spectrum
• No-go Theorem for Scalar-Trispectrum-Induced Gravitational Waves
• Peaks and primordial black holes: the effect of non-Gaussianity
• Gravitational waves from dark matter isocurvature
• Search for subsolar-mass binaries in the first half of Advanced LIGO and Virgo's third observing run
• Prospects for probing gravitational waves from primordial black hole binaries
• The Minimum Testable Abundance of Primordial Black Holes at Future Gravitational-Wave Detectors
• Search for scalar induced gravitational waves in the International Pulsar Timing Array Data Release 2 and NANOgrav 12.5 years datasets
• Broad search for gravitational waves from subsolar-mass binaries through LIGO and Virgo's third observing run
• Simulations of PBH formation at the QCD epoch and comparison with the GWTC-3 catalog
• Primordial black hole formation during the QCD phase transition: threshold, mass distribution and abundance
• Can LIGO Detect Non-Annihilating Dark Matter?
• Primordial black holes in the curvaton model: possible connections to pulsar timing arrays and dark matter
• Microlensing optical depth and event rate toward the Large Magellanic Cloud based on 20 years of OGLE observations
• One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes
• Curbing PBHs with PTAs
• Non-linearities in the tidal Love numbers of black holes
• Constraints on primordial black holes from LIGO-Virgo-KAGRA O3 events
• Induced Gravitational Wave interpretation of PTA data: a complete study for general equation of state
• Power spectrum of domain-wall network and its implications for isotropic and anisotropic cosmic birefringence
• Constraining first-order phase transitions with curvature perturbations
• Axion-Gauge Dynamics During Inflation as the Origin of Pulsar Timing Array Signals and Primordial Black Holes
• Probing the speed of scalar-induced gravitational waves with pulsar timing arrays
• Searching for Primordial Black Holes with the Einstein Telescope: impact of design and systematics
• Testing primordial black hole and measuring the Hubble constant with multiband gravitational-wave observations
• A Note on the Abundance of Primordial Black Holes: Use and Misuse of the Metric Curvature Perturbation
• Fermion soliton stars
• Higgs portals to pulsar collapse
• Primordial black hole mergers from three-body interactions
• Constraining properties of asymmetric dark matter candidates from gravitational-wave observations
• One $\mu$ to rule them all: CMB spectral distortions can probe domain walls, cosmic strings and low scale phase transitions
• The separate universe problem: 40 years on
• Solar mass black holes from neutron stars and bosonic dark matter
• The Primordial Black Hole Abundance: The Broader, the Better
• Analysis of a subsolar-mass compact binary candidate from the second observing run of Advanced LIGO
• Search for Non-Tensorial Gravitational-Wave Backgrounds in the NANOGrav 15-Year Data Set
• Lensing constraints on ultradense dark matter halos
• Primordial black holes and curvature perturbations from false vacuum islands
• Numerical simulation of type II primordial black hole formation
• Enhanced curvature perturbations from spherical domain walls nucleated during inflation
• Revised bounds on local cosmic strings from NANOGrav observations
• Quest for CMB spectral distortions to probe the scalar-induced gravitational wave background interpretation of pulsar timing array data
• Using Equation of State Constraints to Classify Low-Mass Compact Binary Mergers
• Dark Matter Minihalos from Primordial Magnetic Fields
• Consistency of JWST Black Hole Observations with NANOGrav Gravitational Wave Measurements
• Eccentricity effects on the supermassive black hole gravitational wave background
• Peak statistics for the primordial black hole abundance
• Can we distinguish the adiabatic fluctuations and isocurvature fluctuations with pulsar timing arrays?
• The Irrelevance of Primordial Black Hole Clustering in the LVK mass range
• Search for a gravitational wave background from primordial black hole binaries using data from the first three LIGO-Virgo-KAGRA observing runs
• Constraints on small-scale primordial density fluctuation from cosmic microwave background through dark matter annihilation
• Constraining the impact of standard model phase transitions on primordial black holes
• Near- and sub-solar-mass naked singularities and black holes from transmutation of white dwarfs
• Cosmological Consequences of Domain Walls Biased by Quantum Gravity
• Cosmology and nuclear-physics implications of a subsolar gravitational-wave event
• Signals of merging supermassive primordial black holes in pulsar timing arrays
• Gravitational effects on fluid dynamics in cosmological first-order phase transitions
• Multiple peaks in gravitational waves induced from primordial curvature perturbations with non-Gaussianity
• Reading signatures of supermassive binary black holes in pulsar timing array observations
• Gauge-dependence of Scalar Induced Gravitational Waves
• Statistics of the supermassive black hole gravitational wave background anisotropy
• Scalar-induced gravitational wave from domain wall perturbation

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