Continuous gravitational waves from thermal mountains on accreting neutron stars: effect of the nuclear pasta phase
arXiv:2411.11075 · doi:10.3847/1538-4357/adadf2
Abstract
As density increases, the shape of nuclei transitions to non-spherical ``nuclear pasta" structures. The physical properties of the nuclear pasta, such as thermal conductivity and elasticity, have implications for detecting continuous gravitational waves from a rapidly rotating neutron star. In this work, we investigate the effect of the nuclear pasta on the quadruple moment, and find out that, compared with previous work, the quadrupole moment contributing to continuous gravitational-wave radiation can be up to two orders of magnitude larger. We also discuss the relationship between the quadruple moment and the maximum shear strain. Considering the properties of nuclear pasta, we study the detectability of known accreting neutron stars and compare predicted results to the detectable amplitude limits. These sources are well above the sensitivity curves for Cosmic Explorer and Einstein Telescope detectors. Our work advances the understanding of the properties of nuclear pasta and a possible mechanism for continuous gravitational waves.
15 pages, 14 figures
References in corpus (82)
- Neutron Star Observations: Prognosis for Equation of State Constraints
- A unified equation of state of dense matter and neutron star structure
- Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
- Science Case for the Einstein Telescope
- Data analysis of gravitational-wave signals from spinning neutron stars. I. The signal and its detection
- Neutrino Emission from Neutron Stars
- Gravitational Radiation and Rotation of Accreting Neutron Stars
- Swings between rotation and accretion power in a millisecond binary pulsar
- Nuclear-Powered Millisecond Pulsars and the Maximum Spin Frequency of Neutron Stars
- Deformations of Accreting Neutron Star Crusts and Gravitational Wave Emission
- The Giant Flare of 1998 August 27 from SGR 1900+14: II. Radiative Mechanism and Physical Constraints on the Source
- The Breaking Strain of Neutron Star Crust and Gravitational Waves
- Neutron stars - cooling and transport
- Modelling magnetically deformed neutron stars
- Resonant Shattering of Neutron Star Crusts
- On the relevance of the r-mode instability for accreting neutron stars and white dwarfs
- Maximum elastic deformations of compact stars with exotic equations of state
- The rp Process Ashes from Stable Nuclear Burning on an Accreting Neutron Star
- Mapping crustal heating with the cooling lightcurves of quasi-persistent transients
- Detecting gravitational wave emission from the known accreting neutron stars
- Disordered nuclear pasta, magnetic field decay, and crust cooling in neutron stars
- Upper limits on gravitational wave emission from 78 radio pulsars
- A highly resistive layer within the crust of X-ray pulsars limits their spin periods
- Limits on gravitational wave emission from selected pulsars using LIGO data
- Coherent searches for periodic gravitational waves from unknown isolated sources and Scorpius X-1: results from the second LIGO science run
- Beating the spin-down limit on gravitational wave emission from the Vela pulsar
- Mountains on Neutron Stars: Accreted vs. Non-Accreted crusts
- All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
- Gravitational Radiation from an Accreting Millisecond Pulsar with a Magnetically Confined Mountain
- Runaway Heating By R-modes of Neutron Stars in Low Mass X-ray Binaries
- Discovery of the accretion-powered millisecond X-ray pulsar IGR J00291+5934
- Gravitational waves from freely precessing neutron stars
- Searches for Continuous-Wave Gravitational Radiation
- INTEGRAL and RXTE observations of accreting millisecond pulsar IGR J00291+5934 in outburst
- Astromaterial Science and Nuclear Pasta
- The Spin Distribution of Fast Spinning Neutron Stars in Low Mass X-Ray Binaries: Evidence for Two Sub-Populations
- The Accreting Millisecond X-ray Pulsar IGR J00291+5934: Evidence for a Long Timescale Spin Evolution
- Nuclear heating and melted layers in the inner crust of an accreting neutron star
- All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data
- The X-ray spectrum of the atoll source 4U 1608-52
- Modelling the spin equilibrium of neutron stars in LMXBs without gravitational radiation
- Detecting gravitational waves from mountains on neutron stars in the Advanced Detector Era
- Breaking properties of neutron star crust
- Thermal Conductivity of Neutrons in Neutron Star Cores
- The Elasticity of Nuclear Pasta
- Searches for continuous gravitational waves from neutron stars: A twenty-year retrospective
- All-sky Search for Continuous Gravitational Waves from Isolated Neutron Stars in the Early O3 LIGO Data
- Upper bounds on r-mode amplitudes from observations of low-mass X-ray binary neutron stars
- Gravitational Waves and the Maximum Spin Frequency of Neutron Stars
- Modelling neutron star mountains
- Search for continuous gravitational waves from 20 accreting millisecond X-ray pulsars in O3 LIGO data
- The gravitational wave spectrum of non-axisymmetric, freely precessing neutron stars
- Crustal heating in accreting neutron stars from the nuclear energy-density functional theory. I. Proton shell effects and neutron-matter constraint
- Phase-coherent timing of the accreting millisecond pulsar SAX J1748.9-2021
- Late time cooling of neutron star transients and the physics of the inner crust
- The Shear Viscosity and Thermal Conductivity of Nuclear Pasta
- Constraints on Pasta Structure of Neutron Stars from Oscillations in Giant Flares
- Deep Einstein@Home all-sky search for continuous gravitational waves in LIGO O3 public data
- Mechanical Properties of non-accreting Neutron Star Crusts
- XMM-Newton Spectroscopy of the Accretion-Driven Millisecond X-ray Pulsar XTE J1751-305 in Outburst
- Thermodynamically consistent equation of state for an accreted neutron star crust
- Elastic properties of phases with nonspherical nuclei in dense matter
- Effect of topological defects on "nuclear pasta" observables
- Transport properties of nuclear pasta phase with quantum molecular dynamics
- Fast neutrino cooling of nuclear pasta in neutron stars: molecular dynamics simulations
- X-ray Spectroscopy of MXB 1728-34 with XMM-Newton
- Classification and Spectral Evolution of Outbursts of Aql X-1
- Triaxially-deformed Freely-precessing Neutron Stars: Continuous electromagnetic and gravitational radiation
- ASCA Observations of GX 354-0 and KS 1731-260
- Gravitational waves from magnetically-induced thermal neutron star mountains
- Gravitational radiation from thermal mountains on accreting neutron stars: sources of temperature non-axisymmetry
- Magnetically confined mountains on accreting neutron stars with multipole magnetic fields
- Precession of magnetars: dynamical evolutions and modulations on polarized electromagnetic waves
- Thermal Fluctuations in Nuclear Pasta
- R-mode instability of strange stars and observations of neutron stars in LMXBs
- Long-term temperature evolution of neutron stars undergoing episodic accretion outbursts
- Accreting neutron stars from the nuclear energy-density functional theory. II. Equation of state and global properties
- Continuous gravitational waves from trapped magnetar ejecta and the connection to glitches and antiglitches
- Elastic properties of nuclear pasta in a fully three-dimensional geometry
- Anisotropic neutron star crust, solar system mountains, and gravitational waves
- High priority targets for transient gravitational waves from glitching pulsars
- Electron Bremsstrahlung in a Liquid Phase of Neutron Star Crusts