Testing a quintessence model with Yukawa interaction from cosmological observations and N-body simulations

Author(s)

An, Rui ^{[1, 2]} ; Costa, Andre A. ^{[3, 4]} ; Xiao, Linfeng ^[2] ; Zhang, Jiajun ^[2] ; Wang, Bin ^{[4, 1]}

Affiliation

^[1] Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240 - Peoples R China

^[2] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240 - Peoples R China

^[3] Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, SP - Brazil

^[4] Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Jiangsu - Peoples R China

• Document type: Journal article
• Source: Monthly Notices of the Royal Astronomical Society; v. 489, n. 1, p. 297-309, OCT 2019.
• Web of Science Citations: 1

Abstract

We consider a quintessence model with Yukawa interaction between dark energy and dark matter and constrain this model by employing the recent cosmological data including the updated cosmic microwave background (CMB) measurements from Planck 2015, the weak gravitational lensing measurements from Kilo Degree Survey (KiDS), and redshift-space distortions. We find that an interaction in the dark sector is compatible with observations. The updated Planck data can significantly improve the constraints compared with the previous results from Planck 2013, while the KiDS data have less constraining power than Planck. The Yukawa interaction model is found to be moderately favoured by Planck and able to alleviate the discordance between weak lensing measurements and CMB measurements as previously inferred from the standard Lambda cold dark matter model. N-body simulations for Yukawa interaction model is also performed. We find that using the halo density profile is plausible to improve the constraints significantly in the future. (AU)

• FAPESP's process: 13/26496-2 - Testing models of interaction between dark energy and dark matter
• Grantee: André Alencar da Costa
• Support Opportunities: Scholarships in Brazil - Post-Doctoral