317 citations · 479 across the 15 of their papers we have counts for
4 papers · 1 filter
Singularities in static spherically symmetric configurations of General Relativity with strongly nonlinear scalar fields
O. S. Stashko, V. I. Zhdanov
There are a number of publications on relativistic objects dealing either with black holes or naked singularities in the center. Here we show that there exist static spherically sy…
Critical point and Bose-Einstein condensation in pion matter
V. A. Kuznietsov, O. S. Stashko, O. V. Savchuk +1
The Bose-Einstein condensation and the liquid-gas first order phase transition are studied in the interacting pion matter. Two phenomenological models are used: the mean-field mode…
Thin accretion discs around spherically symmetric configurations with nonlinear scalar fields
O. S. Stashko, V. I. Zhdanov, A. N. Alexandrov
We study stable circular orbits (SCO) around static spherically symmetric configuration of General Relativity with a non-linear scalar field (SF). The configurations are described…
Phase diagram of interacting pion matter and isospin charge fluctuations
O. S. Stashko, O. V. Savchuk, R. V. Poberezhnyuk +2
Equation of state and electric (isospin) charge fluctuations are studied for matter composed of interacting pions. The pion matter is described by self interacting scalar fields vi…