Effects of Neutron-Star Dynamic Tides on Gravitational Waveforms within the Effective-One-Body Approach.

Academic Article


  • Extracting the unique information on ultradense nuclear matter from the gravitational waves emitted by merging neutron-star binaries requires robust theoretical models of the signal. We develop a novel effective-one-body waveform model that includes, for the first time, dynamic (instead of only adiabatic) tides of the neutron star as well as the merger signal for neutron-star-black-hole binaries. We demonstrate the importance of the dynamic tides by comparing our model against new numerical-relativity simulations of nonspinning neutron-star-black-hole binaries spanning more than 24 gravitational-wave cycles, and to other existing numerical simulations for double neutron-star systems. Furthermore, we derive an effective description that makes explicit the dependence of matter effects on two key parameters: tidal deformability and fundamental oscillation frequency.
  • Authors

  • Hinderer, Tanja
  • Taracchini, Andrea
  • Foucart, Francois
  • Buonanno, Alessandra
  • Steinhoff, Jan
  • Duez, Matthew
  • Kidder, Lawrence E
  • Pfeiffer, Harald P
  • Scheel, Mark A
  • Szilagyi, Bela
  • Hotokezaka, Kenta
  • Kyutoku, Koutarou
  • Shibata, Masaru
  • Carpenter, Cory W
  • Status

    Publication Date

  • May 6, 2016
  • Has Subject Area

    Published In


  • astro-ph.HE
  • astro-ph.SR
  • gr-qc
  • Digital Object Identifier (doi)

    Pubmed Id

  • 27203312
  • Start Page

  • 181101
  • Volume

  • 116
  • Issue

  • 18