84 citations · 342 across the 10 of their papers we have counts for
10 papers
Roche volume filling and the dissolution of open star clusters
A. Ernst, P. Berczik, A. Just +1
From direct N-body simulations we find that the dynamical evolution of star clusters is strongly influenced by the Roche volume filling factor. We present a parameter study of the…
Fractal basins of escape and the formation of spiral arms in a galactic potential with a bar
Andreas Ernst, Thomas Peters
We investigate the dynamics in the close vicinity of and within the critical area in a 2D effective galactic potential with a bar of Zotos. We have calculated Poincaré surfaces of…
Roche volume filling of star clusters in the Milky Way
A. Ernst, A. Just
We examine the ratios of projected half-mass and Jacobi radius as well as of tidal and Jacobi radius for open and globular clusters in the Milky Way using data…
Simulations of the Hyades
A. Ernst, A. Just, P. Berczik +1
Context: Using the recent observational data of Röser et al. we present -body simulations of the Hyades open cluster. Aims: We make an attempt to determine initial conditions of…
Dynamical friction of massive objects in galactic centres
A. Just, F. M. Khan, P. Berczik +2
Dynamical friction leads to an orbital decay of massive objects like young compact star clusters or Massive Black Holes in central regions of galaxies. The dynamical friction force…
Calibration of radii and masses of open clusters with a simulation
A. Ernst, A. Just, P. Berczik +1
Context: A recent new approach to apply a simple dynamical mass estimate of tidally limited star clusters is based on the identification of the tidal radius in a King profile with…