2025/07/30 by Jesus, Diego S., Velten, Hermano, Toniato, Júnior D.
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)
paper · doi:10.48550/arxiv.2507.22661
This note revisits and corrects a previous analysis on gravitational radiation in compact binary systems within the framework of Brans-Dicke-f(R) theories-models featuring both massless and effectively massive scalar fields. We correct the lower bound on the Brans-Dicke coupling parameter ω0 presented in prior work, identifying teh issue that led to inverted constraints. By reanalyzing data from the binary system PSR J1012+5307, we present revised bounds on ω0 as a function of the geometrical scalar field mass mf, emphasizing that the role of ω0 differs from its traditional interpretation in standard BD theory.