Is non-particle dark matter equation of state parameter evolving with time?

نویسندگان

چکیده

Recently, the so-called Hubble Tension, i.e. mismatch between local and cosmological measurements of parameter, has been resolved when non-particle dark matter is considered which a negative equation state parameter ($\omega \approx -0.01$). We investigate if such candidate can successfully describe galactic flat rotation curves. It found that curve feature puts stringent constraint on $\omega$ $\omega -0.01$ not consistent with rotational curves, observed around galaxies. However, dynamic may overcome tension without affecting feature.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2021

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-021-09490-1