Dynamical ejecta and spiral-wave wind data


We release dynamical ejecta and spiral-wave wind data from about 70 binary neutron star merger simulations of

V. Nedora, S. Bernuzzi, D. Radice, B. Daszuta, A. Endrizzi, et al., Numerical Relativity Simulations of the Neutron Star Merger GW170817: Long-Term Remnant Evolutions, Winds, Remnant Disks, and Nucleosynthesis, arXiv:2008.04333

S. Bernuzzi, M. Breschi, B. Daszuta, A. Endrizzi, D. Logoteta, et al., Accretion-induced prompt black hole formation in asymmetric neutron star mergers, dynamical ejecta and kilonova signals, Mon.Not.Roy.Astron.Soc. 497 (2020) 2, 1488-1507, arXiv:2003.06015

V. Nedora, S. Bernuzzi, D. Radice, A. Perego, A. Endrizzi, et al., Spiral-wave wind for the blue kilonova, Astrophys.J.Lett. 886 (2019) 2, L30, arXiv:1907.04872

Data are relased on ZENODO

Included data:

  • Table1.txt: Table 1 of the paper in a machine-readable format
  • [model].tar: ejecta data for individual simulations.

We provide ejecta properties (for all ejecta types) as:

  • total_flux.dat: angle integrated outflow rate and cumulated ejecta mass.
  • hist_entropy.dat: histogram of the ejecta as a function of the entropy (in kb)
  • hist_vel_inf.dat: histogram of the ejecta as a function of the asymptotic velocity (in units of c)
  • hist_Y_e.dat: histogram of the ejecta as a function of the electron fraction Ye.
  • ejecta_profile.dat: time-integrated ejecta profiles as a function of the polar angle.
  • hist_vinf_theta.h5: histograms of the ejecta as a function of the asymptotic velocity and the polar angle.
  • corr_Y_e_theta.h5: histograms of the ejecta as a function of the asymptotic velocity and the polar angle.
  • ejecta.h5: histograms of the ejecta as a function of Ye, entropy, and expansion timescale tau.

Additionally, for each model we provide

  • Initial data generated with LORENE
  • Parameter file

For the multidimensional histograms the indices are ordered as specified in the file name, ie the file hist_ye_theta.h5 tabulates the ejecta mass as a function of Ye (first index) and polar angle theta (second index).


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