LIGO-GW170817_Source Properties And EOS

Using better waveform models and more comprehensive physics, we (the LVC) have reanalyzed gravitational waves from the coalescing neutron star binary GW170817. In the revised analysis, we could more sharply constrain how the two neutron stars (NS) deform due to their mutual self gravity. These constraints allow us to constrain the size of the two neutron stars, and hence the nature of ultra-high-density matter.

For more information

• Properties of the binary neutron star merger GW170817, submitted to PRX, with a public data realease available at LIGO DCC

• GW170817: Measurements of neutron star radii and equation of state, submitted to PRL, with a public data realease available at LIGO DCC

RIFT and GW170817: Our parameter inference code RIFT was used to compare gravitational wave observations to a few expensive but state-of-the-art models for the inspiral and merger of binary neutron stars.