We study the formation, evolution and physical properties of accretion discs formed via wind
capture in binary systems. Using the adaptive mesh refinement (AMR) code astrobear, we …

About half of the binary systems are close enough to each other for mass to be exchanged
between them at some point in their evolution, yet the accretion mechanism in wind …

In this work we study the 3D smoothed particle hydrodynamics (SPH) structure and
dynamics of the accretion disc generated in a close binary system by wind accretion from the …

We discuss the formation of planetary nebulae (PNs) having a pair of lobes, or multilobes, in
their inner region, surrounded by an elliptical or spherical shell or halo. Both elliptical and …

Using 3D radiation-hydrodynamic simulations and analytic theory, we study the orbital
evolution of asymptotic giant branch (AGB) binary systems for various initial orbital …

Most stars form in binaries and the evolution of their discs remains poorly understood. To
shed light on this subject, we carry out 3D ideal magnetohydrodynamic simulations with the …

Mass-losing giant stars and objects in transition to planetary nebulae often display a bipolar
symmetry in their outflowing circumstellar envelopes. Here we initiate a detailed study of the …

We present hydrodynamical models of planetary nebulae with detached binary cores. The
models are obtained according to the interacting winds scenario. Slow AGB wind models …

Mass transfer from an evolved donor star to its binary companion is a standard feature of
stellar evolution in binaries. In wide binaries, the companion star captures some of the mass …

We investigate mass transfer and the formation of discs in binary systems using a
combination of numerical simulations and theory. We consider six models distinguished by …