Observational constraints on growth index with cosmography

Abstract In the literature, it was proposed that the growth index $$\gamma $$ γ is useful to distinguish the scenarios of dark energy and modified gravity. In the present work, we consider the constraints on the growth index $$\gamma $$ γ by using the latest observational data. To be model-independe...

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Bibliographic Details
Main Authors: Zhao-Yu Yin, Hao Wei
Format: Article
Language:English
Published: SpringerOpen 2019-08-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-019-7191-8