M. Tkachev

activity

20172026

most citedDark Matter Simulations with Primordial Black Holes in the Early Universe

23 citations · 76 across the 11 of their papers we have counts for

collaborators

Showing 2024Show all

3 papers · 1 filter

astro-ph.GA2024★ 4 cited

Properties of Central Regions of the Dark Matter Halos in the Model with a Bump in the Power Spectrum of Density Perturbations

Yu. N. Eroshenko, V. N. Lukash, E. V. Mikheeva +2

A surprisingly large number of galaxies with masses of $\sim 1 0^{9} - 1 0^{10} M_{⊙}$ at redshifts of $z \geq 9$ are discovered with the James Webb Space Telescope. A possible explanation…

astro-ph.CO2024★ 6 cited

Inner structure of dark matter halos at high $z$ in cosmological models with non-power-law primordial spectra

M. V. Tkachev, S. V. Pilipenko, E. V. Mikheeva +1

We consider three cosmological models with non-power-law spectra of primordial density perturbations and test them against $Λ$ CDM in density profiles of dark matter halos. We found…

astro-ph.CO2024

Observations of Galaxies at $z ≳ 10$ Allow to Test Cosmological Models with Features in the Initial Power Spectrum

S. V. Pilipenko, S. A. Drozdov, M. V. Tkachev +1

The initial power spectrum of density perturbations, generated during the inflationary epoch, is now constrained by observations on scales $λ > 5$ ~Mpc and has a power-law form. The p…

Properties of Central Regions of the Dark Matter Halos in the Model with a Bump in the Power Spectrum of Density Perturbations

Inner structure of dark matter halos at high z in cosmological models with non-power-law primordial spectra

Observations of Galaxies at z≳10 Allow to Test Cosmological Models with Features in the Initial Power Spectrum

Inner structure of dark matter halos at high $z$ in cosmological models with non-power-law primordial spectra

Observations of Galaxies at $z ≳ 10$ Allow to Test Cosmological Models with Features in the Initial Power Spectrum