Dark Sector in Cosmology: Dark Energy on Cosmological and Astrophysical Scales

  • B. Novosyadlyj Astronomical Observatory of Ivan Franko National University of Lviv, College of Physics and International Center of Future Science of Jilin University
Keywords: cosmological model, dark energy, accelerated expansion of the Universe, halos, voids, galaxies

Abstract

The properties and observational manifestations of the dynamical dark energy on the cosmological and astrophysical scales are discussed. We consider the dynamical dark energy in the form of quintessential and phantom scalar fields with different parameters of the equation of state and the effective sound speed. The evolution of the dynamical dark energy and its impact on the dynamics of expansion of the Universe, halos, and voids, and its behavior in the static gravitational fields of astrophysical objects are analyzed. The current state and possible tests designed to establish the nature of dark energy are highlighted.

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Published
2019-11-25
How to Cite
Novosyadlyj, B. (2019). Dark Sector in Cosmology: Dark Energy on Cosmological and Astrophysical Scales. Ukrainian Journal of Physics, 64(11), 998. https://doi.org/10.15407/ujpe64.11.998
Section
Fields and elementary particles