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April 29, 20260 citations

Radiation-Driven Stellar Winds: New Hydrodynamic Solutions for Fast–Slow Transition

Radiation-driven stellar winds at the fast–slow transition: New hydrodynamic solutions

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Authors

MFM.C. FernandezRVR.O.J. VeneroLCL.S. Cidale

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Overview

Randomized trial models the gap between fast and slow stellar wind regimes, suggesting structured wind behavior.

Key Points

  • This work aims to model radiation-driven winds in the gap region between fast and δ-slow regimes, focusing on elusive stationary solutions.
  • Utilized the ZEUS-3D hydrodynamic code to compute stationary solutions.
  • Assumed spherical symmetry and non-local thermodynamic equilibrium for line profile calculations.
  • Investigated ionization perturbations affecting transitions between hydrodynamic regimes.
  • Identified new stable stationary solutions in the gap region for a typical B supergiant star model.
  • Observed a kink in the velocity profile at a fixed distance from the star contingent on the δ value.
  • Compared synthetic line profiles with those predicted by a β-law to analyze wind behavior.

Cite This Study

Fernandez et al. (2026) studied this question.

synapsesocial.com/papers/69f19f9cedf4b468248065c5https://doi.org/10.1051/0004-6361/202658896/pdf
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