Published July 12, 2016 | Version v1
Dataset Open

How loud are neutron star mergers?

  • 1. Parma U & INFN
  • 2. Caltech
  • 3. Berkeley
  • 4. Frankfurth Goethe U

Description

We release neutron star merger waveforms computed using fully general relativistic simulations of equal and unequal-mass binaries drawn from the galactic population. The simulations employ finite-temperature microphysical equations of state (LS220, DD2, and SFHo) and neutrino cooling. Please, see

http://arxiv.org/abs/1512.06397

for details.

 

Each tarball refers to a simulation and contains

  • Curvature multipolar waveform \(\psi^{(4)}_{\ell m}\)
  • Metric multipolar waveform \(h_{\ell m}\)
  • Radiated energy and angular momentum

Files:

  • waveforms/Psi4_l?_m?_r200.txt
    • Columns: \(t,\ \Re{(\psi^{(4)}_{\ell m})},\ \Im{(\psi^{(4)}_{\ell m})} \)
  • waveforms/Rh_l?_m?_r200.txt
    • Columns: \(u/M,\ \Re{(h_{\ell m})}/M,\ \Im{(h_{\ell m})}/M,\ \Re{(\dot{h}_{\ell m})},\ \Im{(\dot{h}_{\ell m}}),\ M\omega_{\ell m},\ A_{\ell m}/M,\ \phi_{\ell m},\ t \)
  • waveforms/Ej_r200.txt
    • Columns: \(E_b,\ j,\ E_\text{rad},\ J_\text{rad},\ t \)

where

  • \(t\) simulation time
  • \(u\) retarded time
  • \(M\) binary mass
  • \(\omega_{\ell m}\) wave frequency
  • \(A_{\ell m}\) wave amplitude
  • \(\phi_{\ell m}\) wave phase
  • \(E_\text{GW}\) radiated energy
  • \(J_\text{GW}\) radiated angular momentum
  • \(E_b\) binary energy
  • \(j\) binary specific angular momentum

Please refer to the paper and references therein for the definition of the different quantities.

Units \(c=G=M_\text{Sun}=1\)

Files

Files (107.5 MB)

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Additional details

References

  • How loud are neutron star mergers? Sebastiano Bernuzzi, David Radice, Christian D. Ott, Luke F. Roberts, Philipp Mösta, and Filippo Galeazzi, Phys. Rev. D 94, 024023, 2016. http://arxiv.org/abs/1512.06397