On Shapiro time delay in massive scalar-tensor theories

Autor:	Dyadina, P. I., Labazova, S. P.
Rok vydání:	2021
Předmět:	General Relativity and Quantum Cosmology
Zdroj:	JCAP 01(2022)029
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2022/01/029
Popis:	The problem of determining the post-Newtonian parameter $\gamma$ in massive scalar-tensor theories is considered. We demonstrate equivalent correspondence between the post-Newtonian parameter $\gamma$ and the parameter appearing in the equation of null geodysic in massive scalar-tensor theories. We show that massive scalar-tensor theories can be distinguished from general relativity based on the predictions of Shapiro time delay. All calculations are presented using hybrid metric-Palatini f(R)-gravity as an example. The expression for Shapiro time delay in hybrid f(R)-gravity is obtained for the first time. Comment: 10 pages, submitted to JCAP
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2111.13900 Zobrazit plný text záznamu View this record from Arxiv