572 citations · 912 across the 21 of their papers we have counts for
7 papers · 1 filter
James Webb Space Telescope: data, problems, and resolution
A. D. Dolgov
It is argued that the data presented by Hubble Space Telescope and James Webb Space Telescope, that seem to be at odds with the canonical big bang cosmology, find simple explanatio…
Rates of particle production in gravity and supersymmetry-kind dark matter
E. V. Arbuzova, A. D. Dolgov
Universe heating in -modified gravity is considered. The rates of particle production by the scalaron are calculated for different decay channels. Freezing of massive stable r…
Separated matter and antimatter domains with vanishing domain walls
A. D. Dolgov, S. I. Godunov, A. S. Rudenko +1
We present a model of spontaneous (or dynamical) C and CP violation where it is possible to generate domains of matter and antimatter separated by cosmologically large distances. S…
Shape of the inflaton potential and the efficiency of the universe heating
A. D. Dolgov, A. V. Popov, A. S. Rudenko
It is shown that the efficiency of the universe heating by an inflaton field depends not only on the possible presence of parametric resonance in the production of scalar particles…
Power-law cosmology, SN Ia, and BAO
A. Dolgov, V. Halenka, I. Tkachev
We revise observational constraints on the class of models of modified gravity which at low redshifts lead to a power-law cosmology. To this end we use available public data on Sup…
Dark matter and generation of galactic magnetic fields
Zurab Berezhiani, A. D. Dolgov, I. I. Tkachev
A new scenario for creation of galactic magnetic fields is proposed which is operative at the cosmological epoch of the galaxy formation, and which relies on unconventional propert…