Newtonian approximation and possible time-varying G in nonlocal gravities

The Newtonian approximation with a nonvanishing nonlocal background field is analyzed for the scalar-tensor nonlocal gravity and nonlocal Gauss-Bonnet gravity. For these two theories, our calculations show that the Newtonian gravitational constant G is time-varying and | ˙ G / G | = O ( H 0 ) for th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Physical review. D 2019-03, Vol.99 (6), Article 064044
Hauptverfasser:	Tian, S. X., Zhu, Zong-Hong
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Binary stars Gravitation theory Gravitational constant Gravity Mathematical analysis Solar system Tensors
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!