13 citations · 31 across the 9 of their papers we have counts for
9 papers
Formation of the hydrogen line 21-cm in Dark Ages and Cosmic Dawn: dependences on cosmology and first light
Bohdan Novosyadlyj, Yurij Kulinich, Gennadi Milinevsky +1
We analyze the formation of the redshifted hyperfine structure line 21-cm of hydrogen atom in the Dark Ages, Cosmic Dawn, and Reionization epochs. The evolution of the global diffe…
Samuil Kaplan and the development of astrophysical research at the Lviv University (dedicated to the 100th anniversary of his birth)
Bohdan Novosyadlyj, Bohdan Hnatyk, Yurij Kulinich +6
Samuil Kaplan (1921-1978) was a productive and famous astrophysicist. He was affiliated with a number of scientific centers in different cities of former Soviet Union. The earliest…
Evolution of density and velocity profiles of dark matter and dark energy in spherical voids
Bohdan Novosyadlyj, Maksym Tsizh, Yurij Kulinich
We analyse the evolution of cosmological perturbations which leads to the formation of large isolated voids in the Universe. We assume that initial perturbations are spherical and…
Dynamics of minimally coupled dark energy in spherical halos of dark matter
Bohdan Novosyadlyj, Maksym Tsizh, Yurij Kulinich
We analyse the evolution of scalar field dark energy in the spherical halos of dark matter at the late stages of formation of gravitationally bound systems in the expanding Univers…
Non-linear power spectra of dark and luminous matter in halo model of structure formation
Yurij Kulinich, Bohdan Novosyadlyj, Stepan Apunevych
The late stages of large-scale structure evolution are treated semi-analytically within the framework of modified halo model. We suggest simple yet accurate approximation for relat…
Large-scale structure formation in cosmology with classical and tachyonic scalar fields
O. Sergijenko, Yu. Kulinich, B. Novosyadlyj +1
The evolution of scalar perturbations is studied for 2-component (non-relativistic matter and dark energy) cosmological models at the linear and non-linear stages. The dark energy…