https://doi.org/10.1140/epjc/s10052-021-09490-1
Regular Article - Theoretical Physics
Is non-particle dark matter equation of state parameter evolving with time?
High Energy and Cosmic Ray Research Center, University of North Bengal, 734013, Siliguri, India
Received:
30
March
2021
Accepted:
25
July
2021
Published online:
2
August
2021
Recently, the so-called Hubble Tension, i.e. the mismatch between the local and the cosmological measurements of the Hubble parameter, has been resolved when non-particle dark matter is considered which has a negative equation of state parameter (
). We investigate if such a candidate can successfully describe the galactic flat rotation curves. It is found that the flat rotation curve feature puts a stringent constraint on the dark matter equation of state parameter 
and is not consistent with flat rotational curves, observed around the galaxies. However, a dynamic of non-particle dark matter may overcome the Hubble tension without affecting the flat rotation curve feature.
© The Author(s) 2021
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