Tight bound on neutron-star radius with quasiperiodic oscillations in short gamma-ray bursts

Abstract

Quasiperiodic oscillations (QPOs) have been recently discovered in the short gamma-ray bursts (GRBs) 910711 and 931101B. Their frequencies are consistent with those of the quasiradial and quadrupolar oscillations of binary neutron star merger remnants, as obtained in numerical relativity simulations. These simulations reveal quasiuniversal relations between the remnant oscillation frequencies and the tidal coupling constant of the binaries. Under the assumption that the observed QPOs are due to these postmerger oscillations, we use the frequency-tide relations in a Bayesian framework to infer the source redshift, as well as the chirp mass and the binary tidal deformability of the binary neutron star progenitors for GRBs 910711 and 931101B. We further use this inference to estimate bounds on the mass-radius relation for neutron stars. By combining the estimates from the two GRBs, we find a 68\% credible range $R_{1.4}=12.48_{-0.40}^{+0.41}$~km for the radius of a neutron star with mass $M=1.4$~M${}_{\odot }$, which is one of the tightest bounds to date.

accepted in ApJ

References in corpus (28)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• Constraints on a phenomenologically parameterized neutron-star equation of state
• Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817
• GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
• Neutron-star radius constraints from GW170817 and future detections
• Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
• A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
• The Millisecond Magnetar Central Engine in short GRBs
• New Hyperon Equations of State for Supernovae and Neutron Stars in Density-dependent Hadron Field Theory
• On the importance of viscous dissipation and heat conduction in binary neutron-star mergers
• The Dynamics of Binary Neutron Star Mergers and of GW170817
• Reconstructing the neutron-star equation of state with gravitational-wave detectors from a realistic population of inspiralling binary neutron stars
• On the Sound Speed in Neutron Stars
• The Radius of the High-mass Pulsar PSR J0740+6620 with 3.6 yr of NICER Data
• Necessary Conditions for Short Gamma-Ray Burst Production in Binary Neutron Star Mergers
• When Did the Remnant of GW170817 Collapse to a Black Hole?
• Short GRB Host Galaxies I: Photometric and Spectroscopic Catalogs, Host Associations, and Galactocentric Offsets
• Second release of the CoRe database of binary neutron star merger waveforms
• Kilohertz quasiperiodic oscillations in short gamma-ray bursts
• Flares, jets and quasi-periodic outbursts from neutron star merger remnants
• Detectability of QCD phase transitions in binary neutron star mergers: Bayesian inference with the next generation gravitational wave detectors
• Bayesian inference of multimessenger astrophysical data: Joint and coherent inference of gravitational waves and kilonovae
• Monster Shocks, Gamma-Ray Bursts, and Black Hole Quasi-normal Modes from Neutron-star Collapse
• High-Order Multipole and Binary Love Number Universal Relations
• Cocoon shock breakout emission from binary neutron star mergers

Cited by in corpus (2)

• The Radius of PSR J0437-4715 from NICER Data
• Estimation of neutron star mass and radius of FRB 20240114A by identification of crustal oscillations