Examining a new form of non-standard dark matter using DESI DR2 data

Yan-Hong Yao, Yi-Hao Shen, Tian-Nuo Li +2

In this work, we propose a non-standard dark matter (NSDM) model in which the equation of state (EoS) of dark matter (DM) is parameterized as $w_{\mathrm{dm}}=w_2{a}^2$, and this DM mo…