2 papers
astro-ph.CO2025
Constraints on Features in the Cosmological Power Spectrum from Observations of the Epoch of Reionization
O. R. Skorikov, S. V. Pilipenko, M. V. Tkachev
We consider cosmological models with a power spectrum of perturbations featuring an enhanced amplitude on dwarf galaxy scales (with a "bump" or a "tilt"). Early formation of a larg…
astro-ph.CO2025
Testing Bump in the Cosmological Power Spectrum Using Dwarf Galaxies
Maxim Zabelkin, Sergey Drozdov, Oleg Skorikov +1
We analyze the possibility of using observational data on nearby dwarf galaxies -- their luminosity functions and spatial distributions -- to constrain deviations of the cosmologic…