Dynamics and Gravitational Wave Signature of Collapsar Formation

2010/12/08 by C. D. Ott, Christian D. Ott, Christian Reisswig +17 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #Pulsars and Gravitational Waves Research #astro-ph.HE #astro-ph.SR #gr-qc

paper · pdf · doi:10.1103/physrevlett.106.161103

published as Phys.Rev.Lett.106:161103,2011 · 4 pages, 4 figures, submitted to PRL

arxiv created 2010/12/08 · openalex publication_date 2011/04/22 · arxiv updated 2011/05/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We perform 3+1 general relativistic simulations of rotating core collapse in the context of the collapsar model for long gamma-ray bursts. We employ a realistic progenitor, rotation based on results of stellar evolution calculations, and a simplified equation of state. Our simulations track self-consistently collapse, bounce, the postbounce phase, black hole formation, and the subsequent early hyperaccretion phase. We extract gravitational waves from the spacetime curvature and identify a unique gravitational wave signature associated with the early phase of collapsar formation.

Citations

• Evolutions in 3D numerical relativity using fixed mesh refinement
• Shapiro delay measurement of a two solar mass neutron star
• The Supernova -- Gamma-Ray Burst Connection
• Introduction to dynamical horizons in numerical relativity

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• Three-dimensional general-relativistic hydrodynamic simulations of binary neutron star coalescence and stellar collapse with multipatch grids