The Laser Interferometric Space Antenna (LISA) will observe supermassive black hole binary mergers with amplitude signal-to-noise ratio of several thousands. We investigate the extent to which such observations afford high-precision tests of Einstein's gravity. We show that LISA provides a unique opportunity to probe the non-linear structure of post-Newtonian theory both in the context of general relativity and its alternatives.
@article{arxiv.gr-qc/0604018,
title = {Testing post-Newtonian theory with gravitational wave observations},
author = {K. G. Arun and B. R. Iyer and M. S. S. Qusailah and B. S. Sathyaprakash},
journal= {arXiv preprint arXiv:gr-qc/0604018},
year = {2010}
}