Cosmological constraints on scalar field dark matter

Autor(es)

Escobal, A. A. ^[1] ; Jesus, J. F. ^{[2, 1]} ; Pereira, S. H. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Dept Fis, Fac Engn, Av Dr Ariberto Pereira Cunha 333, BR-12516410 Guaratingueta, SP - Brazil

^[2] Univ Estadual Paulista Unesp, Campus Expt Itapeva, R Geraldo Alckmin 519, BR-18409010 Itapeva, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF MODERN PHYSICS D; v. 30, n. 15 NOV 2021.
• Citações Web of Science: 0

Resumo

This paper aims to put constraints on the parameters of the Scalar Field Dark Matter (SFDM) model, when dark matter is described by a free real scalar field filling the whole universe, plus a cosmological constant term. By using a compilation of 51 H(z) data and 1048 Supernovae data from Panteon, a mass range for the scalar field was obtained, 7.8 x 10(-35) <= m <= 10(-17) eV, in good agreement with light mass axion particles. Also, we have obtained H-0 = 69.5(-2.1)(+2.0) km s(-1) Mpc(-1), and the present dark matter density parameter Omega(phi) = 0.230(-0.031)(+0.033) at 2 sigma confidence level. These results are in good agreement to standard model of cosmology, showing that SFDM model is viable in describing the dark matter content of the universe. (AU)

• Processo FAPESP: 17/05859-0 - O universo acelerado: natureza e testes da energia escura e matéria escura
• Beneficiário: José Fernando de Jesus
• Modalidade de apoio: Auxílio à Pesquisa - Regular