Modeling differential rotations of compact stars in equilibriums
arXiv:1709.02643 · doi:10.1103/PhysRevD.96.103011
Abstract
Outcomes of numerical relativity simulations of massive core collapses or binary neutron star mergers with moderate masses suggest formations of rapidly and differentially rotating neutron stars. Subsequent fall back accretion may also amplify the degree of differential rotations. We propose new formulations for modeling differential rotations of those compact stars, and present selected solutions of differentially rotating, stationary, and axisymmetric compact stars in equilibriums. For the cases when rotating stars reach break-up velocities, the maximum masses of such rotating models are obtained.
7 pages, 4 figures
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- Equilibrium sequences of differentially rotating stars with post-merger-like rotational profiles
- Revisiting the maximum mass of differentially rotating neutron stars in general relativity: Übermassive stars with realistic equations of state
- Instabilities in neutron-star postmerger remnants
- Maximum Mass Of Differentially Rotating Strange Quark Stars
- Differentially rotating scalarized neutron stars with realistic post-merger profile
- Postmerger multimessenger analysis of binary neutron stars: Effect of the magnetic field strength and topology
- Stability of hypermassive neutron stars with realistic rotation and entropy profiles
- Equilibriums of extremely magnetized compact stars with force-free magnetotunnels
- Black hole spectroscopy of collapsing and merging neutron stars
- Maximum mass and stability of differentially rotating neutrons stars
- General relativistic self-gravitating equilibrium disks around rotating neutron stars
- Numerical simulations of oscillating and differentially rotating neutron stars
- Realistic Equations of State Informing Neutron Star Post-Merger Gravitational-Wave Frequencies
- Fundamental modes of rotating neutron stars with various degrees of differential rotation in dynamical spacetimes
- The Parallel Compact Object CALculator: An Efficient General Relativistic Initial Data Solver for Compact Objects