Registration Number
0220U104299,
0120U104854
, R & D reports
Title
Light dark matter and dynamical dark energy in the Universe
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Head
Shtanov Yurii V., Доктор фізико-математичних наук
Registration Date
16-12-2020
Organization
М.М.Bogolyubov Institute of Theoretical Physics of the National Academy of Sciences of Ukraine
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We have detected the line at 3.5 keV in the region around the Galactic centre. The angular distribution of the signal supports decaying dark matter hypothesis.
We construct the theory of N-body simulation. This theory allows one to estimate the artefacts of resolution in the presence of thermal velocities in warm dark matter models.
We fit the rotational curves of the galaxies from the SPARC database with different dark matter profiles using Bayesian approaches.
We review the modifications to the standard cosmological model, which could resolve Hubble tension.
The model of dark matter in the form of collisionless gas of massive particles has been developed. We obtain the constraint on the dark matter model with a nonzero equation of state.
The possible sources of errors in the "late" Hubble constant measurements were analysed.
Possible types of distributions of circular orbits in spherically symmetric configurations of the general theory of relativity in the presence of a scalar field with monomial potential are classified.
Product Description
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Zhdanov Valery I.
Parnovsky Sergei L.
Rudakovskyi Anton V.
Savchenko Denys O.
Stashko Oleksandr S.
Khelashvili Mariia V.
Shtаnov Yurii V.
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2020-12-16
