3 papers
astro-ph.CO2025
Exploring non-cold dark matter in a scenario of dynamical dark energy with DESI DR2 data
Tian-Nuo Li, Peng-Ju Wu, Guo-Hong Du +3
Recent observations of DESI hint that dark matter (DM) may not be cold but have a non-zero equation of state (EoS) parameter, and that dark energy (DE) may not be a cosmological co…
astro-ph.CO2025
Hints of noncold dark matter? Observational constraints on barotropic dark matter with a constant equation of state parameter
Yan-Hong Yao, Jian-Qi Liu
This study investigates the potential of a cosmological model termed DM, in which a cosmological constant play the role of dark energy and dark matter is barotropic and has a c…
astro-ph.CO2025
Revisiting the phenomenologically emergent dark energy model: is non-zero equation of state of dark matter favored by DESI DR2?
Tian-Nuo Li, Yi-Min Zhang, Yan-Hong Yao +3
The nature of dark matter remains one of the most fundamental and unresolved questions in modern cosmology. In most cosmological models, dark matter is typically modeled as pressur…