3 papers
astro-ph.CO2026
A semi-analytical approach to cosmic void evolution
A. N. Baushev, A. G. Nikiforov, M. V. Barkov
We present a theoretical study of the non-linear evolution of cosmic voids -- underdense regions that occupy a large fraction of the observable Universe. We model a void as an isol…
astro-ph.SR2026
Modeling of the magnetic stellar wind braking of the ssrAp 33 Lib (HD137949)
A. G. Nikiforov, V. D. Bychkov, M. V. Barkov
Using the ssrAp star 33 Lib (HD137949) as an example, we show that magnetic braking caused by the interaction of a strong magnetic field with a stellar wind can play a key role in…
gr-qc2025
The impact of the eccentricity on the collapse of an ellipsoid into a black hole
A. G. Nikiforov, A. N. Baushev, M. V. Barkov
We consider the gravitational collapse of a homogeneous pressureless ellipsoid. We have shown that the minimal size that the ellipsoid can reach during collapse depends on its…