58 citations · 180 across the 9 of their papers we have counts for
9 papers
Multi-dimensional, time-dependent approximate NLTE unified model atmospheres with winds for hot, massive stars
Dwaipayan Debnath, Jon O. Sundqvist, Nicolas Moens +3
Multi-dimensional unified model atmospheres with winds of massive stars have so far been studied under the assumption of equal flux, Planck, and energy weighted mean opacities, whi…
2D unified atmosphere and wind simulations of O-type stars
D. Debnath, J. O. Sundqvist, N. Moens +3
Massive and luminous O-star atmospheres with winds have been studied primarily using one-dimensional (1D), spherically symmetric, and stationary models. However, observations and t…
The temperature dependency of Wolf-Rayet-type mass loss: An exploratory study for winds launched by the hot iron bump
A. A. C. Sander, R. R. Lefever, L. G. Poniatowski +3
CONTEXT: The mass loss of He-burning stars, which are partially or completely stripped of their outer hydrogen envelope, is a catalyst of the cosmic matter cycle and decisive ingre…
Investigating the impact of different velocity fields on the spectral appearance of Wolf-Rayet stars
Roel R. Lefever, Tomer Shenar, Andreas A. C. Sander +3
The emission line spectra of WR stars are often formed completely in the optically thick stellar wind. Hence, any assumption on the wind velocity law in a spectral analysis has a p…
Method and new tabulations for flux-weighted line-opacity and radiation line-force in supersonic media
L. G. Poniatowski, N. D. Kee, J. O. Sundqvist +7
In accelerating and supersonic media, the interaction of photons with spectral lines can be of ultimate importance. However, fully accounting for such line forces currently can onl…
First 3D Radiation-Hydrodynamic Simulations of Wolf-Rayet Winds
N. Moens, L. G. Poniatowski, L. Hennicker +3
Classical Wolf Rayet (WR) stars are direct supernova progenitors undergoing vigorous mass-loss. Understanding the dense and fast outflows of such WR stars is thus crucial for under…
Radiation-Hydrodynamics with MPI-AMRVAC: Flux-Limited Diffusion
N. Moens, J. O. Sundqvist, I. El Mellah +3
Radiation controls the dynamics and energetics of many astrophysical environments. To capture the coupling between the radiation and matter, however, is often a physically complex…
Dynamically inflated wind models of classical Wolf-Rayet stars
L. G. Poniatowski, J. O. Sundqvist, N. D. Kee +6
Vigorous mass loss in the classical Wolf-Rayet (WR) phase is important for the late evolution and final fate of massive stars. We develop spherically symmetric time-dependent and s…
Visco-rotational shear instability of Keplerian granular flows
Luka G. Poniatowski, Alexander G. Tevzadze
The linear stability of viscous Keplerian flow around a gravitating center is studied using the rheological granular fluid model. The linear rheological instability triggered by th…