Dynamics and gravitational wave signature of collapsar formation
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. © 2011 American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Ott, C., Reisswig, C., Schnetter, E., O'Connor, E., Sperhake, U., Löffler, F., Diener, P., Abdikamalov, E., Hawke, I., & Burrows, A. (2011). Dynamics and gravitational wave signature of collapsar formation. Physical Review Letters, 106 (16) https://doi.org/10.1103/PhysRevLett.106.161103