Author:
Alcaniz J. S.,Neto J. P.,Queiroz F. S.,da Silva D. R.,Silva R.
Abstract
AbstractThe Standard Cosmological Model has experienced tremendous success at reproducing observational data by assuming a universe dominated by a cosmological constant and dark matter in a flat geometry. However, several studies, based on local measurements, indicate that the universe is expanding too fast, in disagreement with the Cosmic Microwave Background. Taking into account combined data from CMB, Baryon Acoustic Oscillation, and type Ia Supernovae, we show that if the mechanism behind the production of dark matter particles has at least a small non-thermal origin, one can induce larger values of the Hubble rate $$H_0$$
H
0
, within the $$\Lambda$$
Λ
CDM, to alleviate the trouble with $$H_0$$
H
0
. In the presence of non-standard cosmology, however, we can fully reconcile CMB and local measurements and reach $$H_0=70$$
H
0
=
70
–74 $${\text {km s}}^{-1}\,{\text {Mpc}}^{-1}$$
km s
-
1
Mpc
-
1
.
Funder
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
ICTP South American Institute for Fundamental Research
Fundação de Amparo à Pesquisa do Estado de São Paulo
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Instituto Serrapilheira
Agencia Nacional de Investigación y Desarrollo
Publisher
Springer Science and Business Media LLC
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献