Dynamics and Gravitational Wave Signature of Collapsar Formation

Christian D. Ott, Christian Reisswig, Erik Schnetter, Evan O'Connor,
Ulrich Sperhake, Frank Löffler, Peter Diener, Ernazar Abdikamalov, Ian Hawke, and Adam Burrows

Phys. Rev. Lett., 106, 161103 (2011), arXiv:1012.1853

- Gravitational Wave Signal Data -



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.


Below we provide gravitational wave (GW) signal data for our model set discussed in this paper. The GWs were extracted using the Cauchy-Characteristic Extraction method. Please see the paper and Reisswig et al. 2011 for details.

A recent review on the overall gravitational-wave signature of stellar collapse and collapse-driven supernovae can be found in Ott 2009.

All gravitational-wave data files are in gzipped plain text ASCII format with two columns: time (in milliseconds) and h_+D in units of centimeters, where D is the distance to the source. The zero point of time is the time of core bounce in each individual model.

Please let us know if you have any questions or comments concerning the data provided here:

Model GW Data
time (ms), h_+ D [cm]
u75rot1 download
u75rot1.5 download
u75rot2 download