Journal: Astronomy and Astrophysics

  • Publication
    Numerical determination of the cutoff frequency in solar models
    Context. In stratified atmospheres, acoustic waves can only propagate if their frequency is higher than the cutoff value. The determination of the cutoff...
  • Publication
    Numerical modeling of lander interaction with a low-gravity asteroid regolith surface. II. Interpreting the successful landing of Hayabusa2 MASCOT
    Context. The JAXA asteroid sample return mission Hayabusa2 reached its target (162173) Ryugu in June 2018 and released the European (CNES-DLR) lander MASCOT in...
  • Publication
    Numerical modelling of spectral line asymmetries in photospheric structures. I. Quiet Sun.
    Modelling of asymmetries in spectral lines with different formation heights (K I 7699, Fe I 5576 and Fe I 5635A), observed in the quiet Sun at the disk center...
  • Publication
    Numerical modelling of spectral line asymmetries in photospheric structures. II. Plage regions.
    A numerical code has been developed for modelling the asymmetries in three spectral lines (K I 7699, Fe I 5576 and Fe I 5635A) formed at different photospheric...
  • Publication
    Numerical simulations of exocomet transits: Insights from β Pic and KIC 3542116
    In recent years, the topic of existence and exploration of exocomets has been gaining increasing attention. The asymmetrical decrease in the star's brightness...
  • Publication
    Numerical simulations of kinematic dynamo action
    Numerical simulations of kinematic dynamo action in steady and three-dimensional ABC flows are presented with special focus on the difference in growth rates...
  • Publication
    Numerical simulations of large-amplitude oscillations in flux rope solar prominences
    Context. Large-amplitude oscillations (LAOs) of solar prominences are a very spectacular, but poorly understood, phenomena. These motions have amplitudes larger...
  • Publication
    Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields
    High resolution observations of the solar corona made with instruments onboard the SOHO and TRACE spacecrafts have provided new evidence for the presence of...
  • Publication
    Numerical simulations of prominence oscillations triggered by external perturbations
    Context. Several energetic disturbances have been identified as triggers of large-amplitude oscillations (LAOs) in prominences. Observations show that Moreton...