2021/06/30 by Kamal Bora, R. F. L. Holanda, Shantanu Desai +1 · 1 citation
Physics and Astronomy · #astro-ph.CO
paper · pdf · doi:10.1140/epjc/s10052-022-09987-3
7 Pages, 3 figures, and Accepted for publication in EPJC
arxiv created 2022/01/03 · arxiv updated 2022/01/11
In this letter, we implement a test of the standard law for the dark matter density evolution. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by ρc(z) ∝ (1+z)3+ε, and constraints on ε are obtained by using galaxy cluster gas mass fractions, and cosmic chronometers measurements. We find that ε=0 within 2σ c.l., in full agreement with other recent analyses.