Anisotropic Cosmology in the Local Limit of Nonlocal Gravity

Autor:	Tabatabaei, Javad, Banihashemi, Abdolali, Baghram, Shant, Mashhoon, Bahram
Rok vydání:	2023
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics
Zdroj:	Universe 9, 377 (2023)
Druh dokumentu:	Working Paper
DOI:	10.3390/universe9090377
Popis:	Within the framework of the local limit of nonlocal gravity (NLG), we investigate a class of Bianchi type I spatially homogeneous but anisotropic cosmological models. The modified field equations are presented in this case and some special solutions are discussed in detail. This modified gravity theory contains a susceptibility function S(x) such that general relativity (GR) is recovered for S = 0. In the modified anisotropic cosmological models, we explore the contribution of S(t) and its temporal derivative to the local anisotropic cosmic acceleration. The implications of our results for observational cosmology are briefly discussed. Comment: 25 pages; v2: minor improvements, invited contribution to appear in Universe
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2308.08281 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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