Dynamical tides in coalescing superfluid neutron star binaries with hyperon cores and their detectability with third generation gravitational-wave detectors

Understand

The dynamical tide in a coalescing neutron star binary induces phase shifts in the gravitational waveform as the orbit sweeps through resonances with individual g-modes.

• Unlike the phase shift due to the equilibrium tide, the phase shifts due to the dynamical tide are sensitive to the stratification, composition, and superfluid state of the core.
• We extend our previous study of the dynamical tide in superfluid neutron stars by allowing for hyperons in the core.
• Hyperon gradients give rise to a new type of composition g-mode.