Numerical relativity simulation of GW150914 beyond general relativity
Abstract
We produce the first astrophysicallyrelevant numerical binary black hole gravitational waveform in a highercurvature theory of gravity beyond general relativity. We simulate a system with parameters consistent with GW150914, the first LIGO detection, in orderreduced dynamical ChernSimons gravity, a theory with motivations in string theory and loop quantum gravity. We present results for the leadingorder corrections to the merger and ringdown waveforms, as well as the ringdown quasinormal mode spectrum. We estimate that such corrections may be discriminated in detections with signal to noise ratio $\gtrsim 24$
 Publication:

arXiv eprints
 Pub Date:
 November 2019
 arXiv:
 arXiv:1911.02588
 Bibcode:
 2019arXiv191102588O
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics  High Energy Astrophysical Phenomena;
 High Energy Physics  Theory
 EPrint:
 7 pages + appendices, 8 figures