68 citations · 700 across the 45 of their papers we have counts for
8 papers · 1 filter
Low-temperature primordial gas in merging halos
E. O. Vasiliev, Yu. A. Shchekinov
Thermal regime of the baryons behind shock waves arising in the process of virialization of dark matter halos is governed at cetrain conditions by radiation of HD lines. A small fr…
First supernovae in dwarf protogalaxies
E. O. Vasiliev, E. I. Vorobyov, Yu. A. Shchekinov
(Abridged) We explore numerically the chemical, thermal, and dynamical evolution of a shell formed by a high-energy supernova explosion ( erg) in dwarf protogalaxies with…
The influence of ultra-high-energy cosmic rays on star formation in the early universe
E. O. Vasiliev, Yu. A. Shchekinov
The presence of ultra-high-energy cosmic rays (UHECR) results in an increase in the degree of ionization in the post-recombination Universe, which stimulates the efficiency of the…
Primordial gas cooling behind shock waves in merging halos
E. O. Vasiliev, Yu. A. Shchekinov
We investigate thermal regime of the baryons behind shock waves arising in the process of virialization of dark matter halos. We find a fraction of the shocked gas cooled by radiat…
Particle decay in the early universe: predictions for 21 cm
Yu. A. Shchekinov, E. O. Vasiliev
The influence of ultra-high energy cosmic rays (UHECRs) and decaying dark matter particles on the emission and absorption characteristics of neutral hydrogen in 21 cm at redshifts…
Contribution of HD molecules in cooling of the primordial gas
E. O. Vasiliev, Yu. A. Shchekinov
We study the effects of HD molecules on thermochemical evolution of the primordial gas behind shock waves, possibly arised in the process of galaxy formation. We find the critical…