期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 8, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2020/08/020
关键词
dark energy theory; dark matter theory
资金
- Atraccion del Talento Cientfico en Salamanca programme
- Spanish Ministerio de Ciencia, Innovacion y Universidades [PGC2018-096038-B-I00]
- Ayudas del Programa XIII by USAL
We consider a scenario where dark energy and baryons are dynamically coupled without any energy transfer. In this scenario, the background cosmology is unaffected and, at the perturbations level, the coupling only appears through the corresponding Euler equations of dark energy and baryons. We then explore some phenomenological consequences of this scenario and their signatures in several cosmological observables. In particular, we show its ability to suppress the growth of cosmic structures. We also constrain the parameters of the model with cosmological data and show that an interaction of dark energy with baryons on cosmological scales is mildly favoured.
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