Time-dependent modeling of extended thin decretion disks of critically rotating stars

• Published in: arXiv.org
• Main Authors: Kurfürst, Petr, Feldmeier, Achim, Krtička, Jiří
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 30.07.2014
• Subjects: Angular momentum; Angular velocity; Computational fluid dynamics; Ejection; Finite difference method; Fluid flow; Massive stars; Mathematical models; Navier-Stokes equations; Newton-Raphson method; One dimensional models; Physical properties; Physics - Solar and Stellar Astrophysics; Rotating disks; Shear viscosity; Stellar evolution; Stellar rotation; Temperature profiles; Time dependence; Velocity; Viscosity

During their evolution massive stars can reach the phase of critical rotation when a further increase in rotational speed is no longer possible. Direct centrifugal ejection from a critically or near-critically rotating surface forms a gaseous equatorial decretion disk. Anomalous viscosity provides t...