Effect of hyperon-hyperon interaction on bulk viscosity and r-mode instability in neutron stars
arXiv:astro-ph/0602538 · doi:10.1103/PhysRevD.74.023003
Abstract
We investigate the effect of hyperon matter including hyperon-hyperon interaction on bulk viscosity. Equations of state are constructed within the framework of a relativistic field theoretical model where baryon-baryon interaction is mediated by the exchange of scalar and vector mesons. Hyperon-hyperon interaction is also taken into account by the exchange of two strange mesons. This interaction results in a smaller maximum mass neutron star compared with the case without the interaction. The coefficient of bulk viscosity due to the non-leptonic weak process is determined by these equations of state. The interacting hyperon matter reduces the bulk viscosity coefficient in a neutron star interior compared with the no interaction case. The r-mode instability is more effectively suppressed in hyperon-hyperon interaction case than that without the interaction.
25 pages, 10 figures; two new figures added and results and discussion section revised; final version to appear in PRD
References in corpus (15)
- Rotating Stars in Relativity
- Gravitational Radiation Instability in Hot Young Neutron Stars
- Nuclear-Powered Millisecond Pulsars and the Maximum Spin Frequency of Neutron Stars
- Gravitational radiation limit on the spin of young neutron stars
- Gravitational waves from instabilities in relativistic stars
- Evidence of Xi hypernuclear production in the ^{12}C(K^-,K^+)^{12}_{Xi}Be reaction
- Probing strange stars and color superconductivity by r-mode instabilities in millisecond pulsars
- Effect of hyperon bulk viscosity on neutron-star r-modes
- Second-order rotational effects on the r-modes of neutron stars
- A third family of super dense stars in the presence of antikaon condensates
- R-modes of accreting hyperon stars as persistent sources of gravitational waves
- Bulk Viscosity in Hybrid Stars
- Bulk Viscosity in Neutron Stars from Hyperons
- Are rotating strange quark stars good sources of gravitational waves?
- Hadrons in compact stars
Cited by in corpus (36)
- Neutron Stars and the Nuclear Equation of State
- Do hyperons exist in the interior of neutron stars ?
- Hypernuclear Physics for Neutron Stars
- Reaction rates and transport in neutron stars
- Quark matter nucleation in hot hadronic matter
- Bulk viscosity of baryonic matter with trapped neutrinos
- Effect of hyperons on f-mode oscillations in Neutron Stars
- Strangeness in Compact Stars
- Hyperons: the strange ingredients of the nuclear equation of state
- Bulk viscosity of strange quark matter: Urca versus non-leptonic processes
- Strangeness-changing Rates and Hyperonic Bulk Viscosity in Neutron Star Mergers
- Nuclear symmetry energy and the r-mode instability of neutron stars
- Bulk viscosity of spin-one color superconductors with two quark flavors
- Bulk viscosity of superfluid hyperon stars
- Effects of quark matter nucleation on the evolution of proto-neutron stars
- A FRW Dark Fluid with a Non-Linear Inhomogeneous Equation of State
- Bulk viscosity in nuclear and quark matter: A short review
- R-modes as a New Probe of Dark Matter in Neutron Stars
- Bulk viscosity in neutron stars with hyperon cores
- Investigating tidal heating in neutron stars via gravitational Raman scattering
- Bulk viscosity in kaon condensed matter
- Bulk viscosity in hyperonic star and r-mode instability
- Hyperon bulk viscosity in strong magnetic fields
- Tidal heating as a direct probe of strangeness inside neutron stars
- Hyperon bulk viscosity and -modes of neutron stars
- Hyperon bulk viscosity in the presence of antikaon condensate
- Baryon number conservation and enforced electric charge neutrality for bulk viscosity in quark matter
- Relativistic correction to the r-mode frequency in light of multi-messenger constraints
- Exotic bulk viscosity and its influence on neutron star r-modes
- Signatures of strangeness in neutron star merger remnants
- Magnetic field generated by r-modes in accreting quark stars
- Tidal dissipation in binary neutron star inspirals from hyperon bulk viscosity: Phase modeling and parameter estimation bias
- Shear viscosity in antikaon condensed matter
- Bulk viscosity and r-modes of neutron stars
- A new approach to bulk viscosity in strange quark matter at high densities
- Effect of Shear viscosity on the nucleation of antikaon condensed matter in neutron stars