26 citations · 75 across the 4 of their papers we have counts for
4 papers
Modeling of interactions between supernovae ejecta and aspherical circumstellar environments
Petr Kurfürst, Jiří Krtička
Massive stars are characterized by a significant loss of mass either via spherically symmetric stellar winds or pre-explosion pulses, or by aspherical forms of circumstellar matter…
Torsional oscillations and observed rotational period variations in early-type stars
J. Krticka, Z. Mikulasek, G. W. Henry +2
Some chemically peculiar stars in the upper main sequence show rotational period variations of unknown origin. We propose these variations are a consequence of the propagation of i…
Magnetorotational instability in decretion disks of critically rotating stars and the outer structure of Be and Be/X-ray disks
Jiri Krticka, Petr Kurfurst, Iva Krtickova
Evolutionary models of fast-rotating stars show that the stellar rotational velocity may approach the critical speed. Critically rotating stars cannot spin up more, therefore they…
Time-dependent modeling of extended thin decretion disks of critically rotating stars
Petr Kurfürst, Achim Feldmeier, Jiří Krtička
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…