Binary Induced Neutron-Star Compression, Heating, and Collapse

Abstract

We analyze several aspects of the recently noted neutron star collapse instability in close binary systems. We utilize (3+1) dimensional and spherical numerical general relativistic hydrodynamics to study the origin, evolution, and parametric sensitivity of this instability. We derive the modified conditions of hydrostatic equilibrium for the stars in the curved space of quasi-static orbits. We examine the sensitivity of the instability to the neutron star mass and equation of state. We also estimate limits to the possible interior heating and associated neutrino luminosity which could be generated as the stars gradually compress prior to collapse. We show that the radiative loss in neutrinos from this heating could exceed the power radiated in gravity waves for several hours prior to collapse. The possibility that the radiation neutrinos could produce gamma-ray (or other electromagnetic) burst phenomena is also discussed.

17 pages, 7 figures

Cited by in corpus (26)

• Formation Rates of Black Hole Accretion Disk Gamma-Ray Bursts
• Binary Neutron Star Mergers
• The central engine of gamma-ray bursters
• Coalescing Binary Neutron Stars
• General Relativistic Augmentation of Neutrino Pair Annihilation Energy Deposition Near Neutron Stars
• Irrotational binary neutron stars in quasiequilibrium
• Towards a Realistic Neutron Star Binary Inspiral: Initial Data and Multiple Orbit Evolution in Full General Relativity
• Revised Relativistic Hydrodynamical Model for Neutron-Star Binaries
• Post-Newtonian Models of Binary Neutron Stars
• Relativistic Hydrodynamics in Close Binary Systems: Analysis of Neutron-Star Collapse
• Post Newtonian SPH
• Possible explanation for star-crushing effect in binary neutron star simulations
• General-relativistic coupling between orbital motion and internal degrees of freedom for inspiraling binary neutron stars
• Stable 3-level leapfrog integration in numerical relativity
• Gamma-Ray Bursts via the Neutrino Emission from Heated Neutron Stars
• A new numerical scheme to compute 3D configurations of quasiequilibrium compact stars in general relativity -- Application to synchronously rotating binary star systems --
• Energy Localization Invariance of Tidal Work in General Relativity
• Neutrino pair annihilation ($\nu \bar{\nu }\to e^{-}{e}^{+}$) in the presence of quintessence surrounding a black hole
• A Model for Short Gamma-Ray Bursts: Heated Neutron Stars in Close Binary Systems
• Multi-messenger Emission from Tidal Waves in Neutron Star Oceans
• A Numerical Study of Boson Star Binaries
• Binary-induced collapse of a compact, collisionless cluster
• Energizing gamma ray bursts via $Z^{\prime }$ mediated neutrino heating
• General Relativistic Decompression of Binary Neutron Stars During Dynamic Inspiral
• Methods for relativistic self-gravitating fluids: From binary neutron stars to black hole-disks and magnetized rotating neutron stars
• Review of Conformally Flat Approximation for Binary Neutron Star Initial Conditions