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Tidal effects in gravitational-wave (GW) observations from binary neutronstar mergers have the potential to probe ultra-dense matter and shed light onthe unknown nuclear equation of state of neutron stars. Tidal effects ininspiralling neutron star binaries become relevant at GW frequencies of a fewhundred Hz and require detectors with exquisite high-frequency sensitivity.Third generation GW detectors such as the Einstein Telescope or Cosmic Explorerwill be particularly sensitive in this high-frequency regime, allowing us toprobe neutron star tides beyond the adiabatic approximation. Here we assesswhether dynamical tides can be measured from a neutron star inspiral. We findthat the measurability of dynamical tides depends strongly on the neutron starmass and equation of state. For a semi-realistic population of 10,000inspiralling binary neutron stars, we conservatively estimate that on average$\mathcal{O}(50)$ binaries will have measurable dynamical tides. As dynamicaltides are characterised not only by the star's tidal deformability but also byits fundamental ($f$-) mode frequency, they present a possibility of probinghigher-order tidal effects and test consistency with quasi-universal relations.For a GW170817-like signal in a third generation detector network, we find thatthe stars' $f$-mode frequencies can be measured to within a few hundred Hz.

Prospects for distinguishing dynamical tides in inspiralling binary neutron stars with third generation gravitational-wave detectors