52 citations · 87 across the 4 of their papers we have counts for
5 papers
Shocks in the relativistic transonic accretion with low angular momentum
Petra Suková, Szymon Charzyński, Agnieszka Janiuk
We perform 1D/2D/3D relativistic hydrodynamical simulations of accretion flows with low angular momentum, filling the gap between spherically symmetric Bondi accretion and disc-lik…
Relativistic low angular momentum accretion in 3D
Petra Suková, Szymon Charzyński, Agnieszka Janiuk
We study the low angular momentum accretion of matter onto Schwarzschild or Kerr black hole using fully relativistic numerical simulations. Our aim is to include the rotation of bo…
Wei-Norman equations for classical groups
Szymon Charzyński, Marek Kuś
We show that the non-linear autonomus Wei-Norman equations, expressing the solution of a linear system of non-autonomous equations on a Lie algebra, can be reduced to the hierarchy…
Long Gamma Ray Bursts from binary black holes
Agnieszka Janiuk, Szymon Charzyński, Michał Bejger
We consider a scenario for the longest duration gamma ray bursts, resulting from the collapse of a massive rotating star in a close binary system with a companion black hole. The p…
Wei-Norman equations for a unitary evolution
Szymon Charzyński, Marek Kuś
The Wei-Norman technique allows to express the solution of a system of linear non-autonomous differential equations in terms of product of exponentials. In particular it enables to…