Michal Janáček Ceniga - Academia.edu (original) (raw)
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Papers by Michal Janáček Ceniga
The theory of radiatively driven wind of Castor, Abbott, and Klein is used for a description of h... more The theory of radiatively driven wind of Castor, Abbott, and Klein is used for a description of hot star winds. We developed a code using the Newton-Raphson method to get a 1D solution of a line driven isothermal wind. The influence of rotation on the wind solution is studied.
Proceedings of the International Astronomical Union, 2006
The multiple stellar system SZ Cam is solved using the method of spectral disentrangling. Hα line... more The multiple stellar system SZ Cam is solved using the method of spectral disentrangling. Hα line profiles of three components are obtained and spectroscopic orbit elements are redetermined.
The CAK theory is used for a description of a line driven wind of hot stars. We have developed a ... more The CAK theory is used for a description of a line driven wind of hot stars. We have developed a code using the Newton-Raphson method to obtain a solution of a 1D isothermal line driven wind with rotation. Our calculations confirmed that there exists a "break" value of stellar rotation velocity, for which the wind solution switches to a new one, which yields much denser and slower wind than in the non-rotating case. For this new solution we found a new critical point, which is located far from the stellar photosphere. Close to the star the outflow is 100 times denser at the equator than at the pole. The wind velocity profile is shallower and reaches a terminal velocity of only several hundred km s-1.
The theory of radiatively driven wind of Castor, Abbott, and Klein is used for a description of h... more The theory of radiatively driven wind of Castor, Abbott, and Klein is used for a description of hot star winds. We developed a code using the Newton-Raphson method to get a 1D solution of a line driven isothermal wind. The influence of rotation on the wind solution is studied.
Proceedings of the International Astronomical Union, 2006
The multiple stellar system SZ Cam is solved using the method of spectral disentrangling. Hα line... more The multiple stellar system SZ Cam is solved using the method of spectral disentrangling. Hα line profiles of three components are obtained and spectroscopic orbit elements are redetermined.
The CAK theory is used for a description of a line driven wind of hot stars. We have developed a ... more The CAK theory is used for a description of a line driven wind of hot stars. We have developed a code using the Newton-Raphson method to obtain a solution of a 1D isothermal line driven wind with rotation. Our calculations confirmed that there exists a "break" value of stellar rotation velocity, for which the wind solution switches to a new one, which yields much denser and slower wind than in the non-rotating case. For this new solution we found a new critical point, which is located far from the stellar photosphere. Close to the star the outflow is 100 times denser at the equator than at the pole. The wind velocity profile is shallower and reaches a terminal velocity of only several hundred km s-1.