Density Contour in the Equatorial Plane

  • Unequal mass irrotational binary; Rest-mass ratio = 0.925
  • Polytropic index n=1
  • Compactness of neutron star : Gm/Rc^2 = 0.15 vs 0.17
  • Initial orbital separation : r ~ 9.0 GM/c^2
  • White circle in the last stage : Apparent horizon
  • (633, 633, 317) grid point simulation; (121, 121) region is shown