On the determination of masses of components using spectra of developed circumstellar structures and the cases of RY Sct and β Lyr.
It is well known that the masses of the components of binary systems cannot be derived unless the lines of both their components are observed. But there is another possibility how to obtain an information about the masses in the case the lines of some gaseous circumstellar structures in the spectrum are present Skul'skij (1976). The method itself is based on a comparison of the observed radial velocities from the lines of the gaseous stream moving between the components and the lines formed outside the Roche lobe with the parabolic velocities of trial particles ejected through the Lagrangean point L2 out of the system. One can conclude that in spite of some mathematical simplifications the method brings a new possibility of obtaining an important information about the masses of components in close binaries and, therefore, can be used for a practical application.
Contributions of the Astronomical Observatory Skalnate Pleso
- Pub Date:
- Close Binaries: Circumstellar Shells;
- Close Binaries: Stellar Masses