Abstract
We adapt the post-Newtonian gravitational-radiation methods developed within general relativity by Epstein and Wagoner to the gravitation theory with torsion, recently proposed by Hehl et al., and show that the two theories predict in this approximation the same gravitational radiation losses. Since they agree also on the first post-Newtonian level, they are at the present time-observationally-indistinguishable.
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Schweizer, M., Straumann, N. & Wipf, A. Post-Newtonian generation of gravitational waves in a theory of gravity with torsion. Gen Relat Gravit 12, 951–961 (1980). https://doi.org/10.1007/BF00757366
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DOI: https://doi.org/10.1007/BF00757366