Gravitational wave spectroscopy of binary neutron star merger remnants with mode stacking

Understand

A binary neutron star (BNS) merger event has recently been observed in gravitational waves (GWs).

• As in the case of binary black holes, GWs generated by BNS consist of inspiral, merger, and post-merger components.
• Detecting the latter is important because it encodes information about the nuclear equation of state (EOS) in a regime that cannot be probed prior to merger.
• The post-merger signal, however, can be observed by current detectors only out to~ 10 Mpc.