5 citations · 14 across the 8 of their papers we have counts for
8 papers
Luminosity, redshift and gas abundance in general relativistic radiation hydrodynamics
Janusz Karkowski, Edward Malec, Krzysztof Roszkowski +1
Quasi-stationary flows of gas accreting onto a compact center are analyzed in the framework of general-relativistic radiation hydrodynamics, under assumptions of spherical symmetry…
Supersonic and subsonic flows in general relativistic radiation hydrodynamics
Edward Malec, Janusz Karkowski, Krzysztof Roszkowski +1
We analyze stationary accretion of selfgravitating gas onto a compact center within general-relativistic radiation hydrodynamics. Spherical symmetry and thin gas approximation are…
Gravastars and bifurcation in quasistationary accretion
Edward Malec, Krzysztof Roszkowski
We investigate the newtonian stationary accretion of a polytropic perfect fluid onto a central body with a hard surface. The selfgravitation of the fluid and its interaction with l…
Luminosity, selfgravitation and nonuniqueness of stationary accretion
Janusz Karkowski, Edward Malec, Krzysztof Roszkowski
We investigate newtonian description of accreting compact bodies with hard surfaces, including luminosity and selfgravitation of polytropic perfect fluids. This nonlinear integro-d…
Nonuniqueness of stationary accretion in the Shakura model
Edward Malec, Krzysztof Roszkowski
We investigate the accretion onto luminous bodies with hard surfaces within the framework of newtonian theory. The accreting gases are assumed to be polytropes and their selfgravit…
Embedding spherical spacelike slices in a Schwarzschild solution
Niall Ó Murchadha, Krzysztof Roszkowski
Given a spherical spacelike three-geometry, there exists a very simple algebraic condition which tells us whether, and in which, Schwarzschild solution this geometry can be smoothl…