Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions

Figure 10

Computed gravitational wave frequency, , versus proper separation for each EoS as labelled. The black line corresponds to the (post)-Newtonian estimate. Frequencies obtained from the stiff and polytropic equations of state do not deviate by more than ~10% from the PN prediction until a frequency greater than ~300 Hz. The grey line is an extrapolation of the frequencies obtained using the soft MW and GLN EoSs. These begin to deviate by more than 10% from the PN prediction at a frequency of ~100 Hz.