Viability of an arctan model of f(R) gravity for late-time cosmology

被引：4

作者：

Dutta, Koushik ^{[1
]}

Panda, Sukanta ^{[2
]}

Patel, Avani ^{[2
]}

机构：

[1] Saha Inst Nucl Phys, Div Theory, 1-AF Salt Lake, Kolkata 700064, India

[2] Indian Inst Sci Educ & Res, Bhopal 462066, Madhya Pradesh, India

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 02期

关键词：

GENERAL-RELATIVITY; DECELERATION; UNIVERSE;

D O I：

10.1103/PhysRevD.94.024016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

f(R) modification of Einstein's gravity is an interesting possibility to explain the late-time acceleration of the Universe. In this work we explore the cosmological viability of one such f(R) modification proposed by Kruglov [Phys. Rev. D 89, 064004 (2014)]. We show that the model violates fifth-force constraints. The model is also plagued with the issue of a curvature singularity in a spherically collapsing object, where the effective scalar field reaches the point of diverging scalar curvature.

引用

页数：8

共 50 条

[1] Late-time viscous cosmology in f(R, T) gravity
Arora, Simran
Bhattacharjee, Snehasish
Sahoo, P. K.
[J]. NEW ASTRONOMY, 2021, 82
[2] A new f(R) model in the light of local gravity test and late-time cosmology
Nautiyal, Akhilesh
Panda, Sukanta
Patel, Avani
[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2018, 27 (01):
[3] Late-time cosmology of scalar-coupled f(R, G) gravity
Odintsov, S. D.
Oikonomou, V. K.
Fronimos, F. P.
[J]. CLASSICAL AND QUANTUM GRAVITY, 2021, 38 (07)
[4] The late-time dynamics of F(R) gravity dark energy model
Qi, Yannan
Yang, Weiqiang
Wang, Yitao
Zhao, Chenchen
Han, TianYi
Wu, Yabo
[J]. PHYSICS OF THE DARK UNIVERSE, 2023, 40
[5] Late-time Cosmology of scalar field assisted f(G) gravity
Venikoudis, S. A.
Fasoulakos, K., V
Fronimos, F. P.
[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2022, 31 (05):
[6] Cosmology in modified f(G) gravity: a late-time cosmic phenomena
Lohakare, Santosh V.
Niyogi, Soumyadip
Mishra, B.
[J]. Monthly Notices of the Royal Astronomical Society, 2024, 535 (01) : 1136 - 1146
[7] New late-time constraints on f (R) gravity
Kumar, Suresh
Nunes, Rafael C.
Pan, Supriya
Yadav, Priya
[J]. PHYSICS OF THE DARK UNIVERSE, 2023, 42
[8] Scalar-tensor f(R) gravity model for late-time universe
Lee, Tae Hoon
[J]. MODERN PHYSICS LETTERS A, 2021, 36 (11)
[9] Late-time cosmology with phantom dark-energy in f(Q) gravity
Lymperis, Andreas
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2022, (11):
[10] Late-time cosmology in a model of modified gravity with an exponential function of the curvature
Oliveros, A.
Acero, Mario A.
[J]. PHYSICS OF THE DARK UNIVERSE, 2023, 40

← 1 2 3 4 5 →