39 citations · 143 across the 9 of their papers we have counts for
9 papers
Sensitivity of the redshifted 21 cm signal from the Dark Ages to parameters of primordial magnetic fields
Bohdan Novosyadlyj, Yurii Kulinich, Nazar Fortuna +1
We analyse the impact of the decaying magnetic turbulence of primordial magnetic fields (PMFs) and ambipolar diffusion on the ionisation and thermal history of the Dark Ages Univer…
SPARC galaxies prefer Dark Matter over MOND
Mariia Khelashvili, Anton Rudakovskyi, Sabine Hossenfelder
We currently have two different hypotheses to solve the missing mass problem: dark matter (DM) and modified Newtonian dynamics (MOND). In this work, we use Bayesian inference appli…
Dark matter profiles of SPARC galaxies: a challenge to fuzzy dark matter
Mariia Khelashvili, Anton Rudakovskyi, Sabine Hossenfelder
Stellar and gas kinematics of galaxies are a sensitive probe of the dark matter distribution in the halo. The popular fuzzy dark matter models predict the peculiar shape of density…
Constraints on warm dark matter from UV luminosity functions of high-z galaxies with Bayesian model comparison
Anton Rudakovskyi, Andrei Mesinger, Denys Savchenko +1
The number density of small dark matter (DM) halos hosting faint high-redshift galaxies is sensitive to the DM free-streaming properties. However, constraining these DM properties…
Can EDGES observation favour any dark matter model?
Anton Rudakovskyi, Denys Savchenko, Maksym Tsizh
The recent detection of the 21-cm absorption signal by the EDGES collaboration has been widely used to constrain the basic properties of dark matter particles. However, extracting…
New model of density distribution for fermionic dark matter halos
A. Rudakovskyi, D. Savchenko
In this paper, we formulate a new model of density distribution for halos made of warm dark matter (WDM) particles. The model is described by a single microphysics parameter - the…
21-cm observations and warm dark matter models
Alexey Boyarsky, Dmytro Iakubovskyi, Oleg Ruchayskiy +2
Observations of the redshifted 21-cm signal (in absorption or emission) allow us to peek into the epoch of "dark ages" and the onset of reionization. These data can provide a novel…
New mass bound on fermionic dark matter from a combined analysis of classical dSphs
Denys Savchenko, Anton Rudakovskyi
Dwarf spheroidal galaxies (dSphs) are the most compact dark matter-dominated objects observed so far. The Pauli exclusion principle limits the number of fermionic dark matter parti…
Dark matter model favoured by reionization data: 7 keV sterile neutrino vs cold dark matter
Anton Rudakovskyi, Dmytro Iakubovskyi
One of possible explanations of a faint narrow emission line at 3.5 keV reported in our Galaxy, Andromeda galaxy and a number of galaxy clusters is the dark matter made of 7 keV st…