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Mass-loss and multicomponent flow from central stars of planetary nebulae
Jiri Krticka, Jiri Kubat
We calculate multicomponent radiatively driven stellar wind models suitable for central stars of planetary nebulae. Some of these stellar winds may be adequately modelled using one…
Properties and nature of Be stars XXIII. Long-term variations and physical properties of kappa Dra
S. M. Saad, J. Kubat, P. Koubsky +9
We present an analysis of new spectroscopic observations of the bright Be star kappa Dra obtained at the Ondrejov observatory during 1992 - 2003 and UBV photometric observations se…
Kinematic model inversions of hot star recurrent DAC data - tests against dynamical CIR models
J. Krticka, R. K. Barrett, J. C. Brown +1
The Discrete Absorption Components (DACs) commonly observed in the ultraviolet lines of hot stars have previously been modelled by dynamical simulations of Corotating Interaction R…
NLTE models of line-driven stellar winds I. Method of calculation and first results for O stars
Jiri Krticka, Jiri Kubat
New numerical models of line-driven stellar winds of late O stars are presented. Statistical equilibrium (NLTE) equations of the most abundant elements are solved. Properly obtaine…