Three-dimensional core-collapse supernova simulations of massive and rotating progenitors

Jade Powell, Bernhard Müller

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15 Citations (Scopus)

Abstract

We present 3D simulations of the core-collapse of massive rotating and non-rotating progenitors performed with the general relativistic neutrino hydrodynamics code coconut-fmt. The progenitor models include Wolf-Rayet stars with initial helium star masses of 39 M⊙ and 20 M⊙, and an 18 M⊙ red supergiant. The 39 M⊙ model is a rapid rotator, whereas the two other progenitors are non-rotating. Both Wolf-Rayet models produce healthy neutrino-driven explosions, whereas the red supergiant model fails to explode. By the end of the simulations, the explosion energies have already reached 1.1 × 1051 and 0.6 × 1051erg for the 39 M⊙ and 20 M⊙ model, respectively. They produce neutron stars of relatively high mass, but with modest kicks. Due to the alignment of the bipolar explosion geometry with the rotation axis, there is a relatively small misalignment of 30° between the spin and the kick in the rapidly rotating 39 M⊙ model. For this model, we find that rotation significantly changes the dependence of the characteristic gravitational-wave frequency of the f-mode on the proto-neutron star parameters compared to the non-rotating case. Its gravitational-wave amplitudes would make it detectable out to almost 2 Mpc by the Einstein Telescope. The other two progenitors have considerably smaller detection distances, despite significant low-frequency emission in the most sensitive frequency band of current gravitational-wave detectors.

Original languageEnglish
Pages (from-to)4665-4675
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Volume494
Issue number4
DOIs
Publication statusPublished - 1 Jun 2020

Keywords

  • gravitational waves
  • hydrodynamics

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