Future Prospects for Probing Scalar-Tensor Theories with Gravitational Waves from Mixed Binaries
arXiv:1907.03897 · doi:10.1088/1361-6382/ab6a1f
Abstract
The extreme-gravity collisions of binaries with one black hole and one neutron star provide for excellent tests of general relativity. We here study how well one can constrain theories beyond general relativity with additional scalar fields that allow for spontaneous scalarization of neutron stars, and those motivated from string theory. We find that existing bounds can be improved with current gravitational-wave detectors if the black hole mass is sufficiently small. Bounds will further improve by many orders of magnitude with future detections, especially by combining multiple events.
arXiv comment8 pages, 8 figures; updated to match with the version published in CQG
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