Dark sector interaction and the supernova absolute magnitude tension

Autor(es)

Nunes, Rafael C. ^[1] ; Di Valentino, Eleonora ^[2]

Afiliação do(s) autor(es)

^[1] Inst Nacl Pesquisas Espaciais, Div Astrofis, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[2] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE - England

• Tipo de documento: Artigo Científico
• Fonte: Physical Review D; v. 104, n. 6 SEP 15 2021.
• Citações Web of Science: 1

Resumo

It has been intensively discussed if modifications in the dynamics of the Universe at late times are able or not able to solve the H-0 tension. On the other hand, it has also been argued that the H-0 tension is actually a tension on the supernova absolute magnitude M-B. In this work, we robustly constrain M-B using Pantheon supernovae Ia sample, baryon acoustic oscillations, and big bang nucleosynthesis data, and assess the M-B tension by comparing three theoretical models, namely the standard Lambda CDM, the wCDM, and a nongravitational interaction between dark energy (IDE) and dark matter. We find that the IDE model can solve the M-B tension with a coupling different from zero at 95% CL, confirming the results obtained using a H-0 prior. (AU)

• Processo FAPESP: 18/18036-5 - Investigando aspectos físicos além do modelo padrão ligados aos temas de energia escura, gravidade modificada, neutrinos e ondas gravitacionais
• Beneficiário: Rafael da Costa Nunes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado