PostNewtonian limit of teleparallel Horndeski gravity
Abstract
We consider the newly proposed BahamondeDialektopoulosLevi Said (BDLS) theory, that is the Horndeski analog in the teleparallel framework and thus contains a nonminimally coupled scalar field, including higher order derivatives, that leads however to second order field equations both for the tetrad and the scalar field. This theory was mostly constructed to revive those models that were severely constrained in the scalartensor version of the theory from the GW170817, but includes also much richer phenomenology because of the nature of the torsion tensor. For this theory we determine the parameterized postNewtonian (PPN) limit, calculate the full set of postNewtonian parameters and highlight some special cases.
 Publication:

Classical and Quantum Gravity
 Pub Date:
 January 2021
 DOI:
 10.1088/13616382/abc441
 arXiv:
 arXiv:2003.11554
 Bibcode:
 2021CQGra..38b5006B
 Keywords:

 modified gravity;
 parameterized postNewtonian formalism;
 scalartensor theory;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Theory
 EPrint:
 LaTeX, 22 pages, no figures