Measuring the eccentricity of GW170817 and GW190425

  title={Measuring the eccentricity of GW170817 and GW190425},
  author={A. Lenon and A. Nitz and D. Brown},
  journal={arXiv: High Energy Astrophysical Phenomena},
  • A. Lenon, A. Nitz, D. Brown
  • Published 2020
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
  • Two binary neutron star mergers, GW170817 and GW190425, have been detected by Advanced LIGO and Virgo. These signals were detected by matched-filter searches that assume the star's orbit has circularized by the time their gravitational-wave emission is observable. This suggests that their eccentricity is low, but a direct measurement of their eccentricity has not yet been made. We use gravitational-wave observations to measure the eccentricity of GW170817 and GW190425. We find that the… CONTINUE READING

    Figures and Tables from this paper.


    Publications referenced by this paper.
    Glitch model for GW190425
    • 2017
    Eccentricity posteriors of GW190425 (solid black line) plotted against their priors (dotted line) for two choices of prior: uniform in e (left) and uniform in
    • 1904
    Vigna-Gómez A., et al., 2018