Stability of cosmic structures in scalar-tensor theories of gravity

被引：14
|
作者：
Panotopoulos, Grigoris [1 ]
Rincon, Angel [2 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, Ctr Multidisciplinar Astrofis, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
[2] Pontificia Univ Catolica Chile, Inst Fis, Ave Vicuna Mackenna 4860, Santiago, Chile
来源：
EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 01期
关键词：
SUPERNOVAE;
D O I：
10.1140/epjc/s10052-017-5470-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In the present work we study a concrete model of scalar-tensor theory of gravity characterized by two free parameters, and we compare its predictions to observational data and constraints coming from supernovae, solar system tests and the stability of cosmic structures. First an exact analytical solution at the background level is obtained. Using that solution the expression for the turnaround radius is computed. Finally we show graphically how current data and limits put bounds on the parameters of the model at hand.
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页数：6
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