Is PSR J0514$-$4002E in a PBH-NS binary?

Abstract

Recent pulsar timing observations using MeerKAT of the eccentric binary millisecond pulsar, PSR J0514$-$4002E, have unveiled a companion with a mass in the mass gap, ranging from $2.09M_{\odot }$ to $2.71M_{\odot }$. This challenges conventional astrophysical scenarios for black hole formation. In this paper, we present an alternative explanation: PSR J0514$-$4002E could be in a PBH-NS binary, with the companion potentially being a primordial black hole formed during the early Universe's first-order phase transition. The associated stochastic gravitational-wave background generated during this phase transition can account for the observed signal from the pulsar timing array, and the abundance of primordial black holes is consistent with constraints from LIGO-Virgo-KAGRA.

arXiv comment6 pages, 3 figures, version accepted for publication in Sci. China Phys. Mech. Astron. (SCPMA);

References in corpus (47)

• The Structure of Cold Dark Matter Halos
• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• Did LIGO detect dark matter?
• 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
• Primordial Black Holes as Dark Matter
• The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
• Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914
• Primordial Black Holes - Perspectives in Gravitational Wave Astronomy -
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
• The Black Hole Mass Distribution in the Galaxy
• The cosmological gravitational wave background from primordial density perturbations
• The Velocity Distribution of Isolated Radio Pulsars
• Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO--Virgo gravitational-wave transient catalogue
• The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
• General Properties of the Gravitational Wave Spectrum from Phase Transitions
• The second data release from the European Pulsar Timing Array I. The dataset and timing analysis
• Primordial Black Holes as Generators of Cosmic Structures
• Primordial Magnetic Fields and Causality
• Could supermassive black holes be quintessential primordial black holes?
• 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
• Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter
• Universal infrared scaling of gravitational wave background spectra
• Primordial black hole production during first-order phase transitions
• Gravitational waves from vacuum first order phase transitions II: from thin to thick walls
• Primordial seeds of supermassive black holes
• Runaway Merging of Black Holes: Analytical Constraint on the Timescale
• Limits on primordial black holes from $\mu$ distortions in cosmic microwave background
• Gravitational waves from bubble dynamics: Beyond the Envelope
• Gravitational radiation from a bulk flow model
• Distinguishing Primordial Black Holes from Astrophysical Black Holes by Einstein Telescope and Cosmic Explorer
• Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
• Galactic neutron stars I. Space and velocity distributions in the disk and in the halo
• Gravitational wave spectra from strongly supercooled phase transitions
• A pulsar in a binary with a compact object in the mass gap between neutron stars and black holes
• First-order Phase Transition interpretation of PTA signal produces solar-mass Black Holes
• Primordial Black Holes from Supercooled Phase Transitions
• The Need For Speed: Rapid Refitting Techniques for Bayesian Spectral Characterization of the Gravitational Wave Background Using PTAs
• Causal gravitational waves as a probe of free streaming particles and the expansion of the Universe
• Gravitational waves from colliding vacuum bubbles in gauge theories
• Does Matter Matter? Using the mass distribution to distinguish neutron stars and black holes
• Ultra-low frequency gravitational waves from cosmological and astrophysical processes
• Establishing the Non-Primordial Origin of Black Hole-Neutron Star Mergers

Cited by in corpus (1)

• Confronting primordial black holes with LIGO-Virgo-KAGRA and the Einstein Telescope