The interpretation of the Wilson-Bappu effect |
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Authors: | G. A. Gurzadyan |
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Affiliation: | (1) Byurakan Astrophysical Observatory, Armenia, USSR |
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Abstract: | The problem of the physical interpretation of the Wilson-Bappu effect is examined. A postulate is forwarded according to which this effect expresses the dependence of the complete kinetic energyEt of turbulent motions in the medium generating magnesium emission in the doublet 2800 Mgii on the velocityW0 of turbulent motion. One of the consequences of the application of this postulate is the appearance of the relationships (8) and (11) which give the magnitude of the kinetic energyEt of turbulent motions in the first case (Figure 2) and the magnitude of the mass of emitting mediumM0 in the second (Figure 3) depending on the turbulent velocityW0(k). This postulate unit in a common conception all variety of the magnesium emission escaped from a single star as well as from binary systems on the one hand and the magnesium emission generated in chromospheres as well as in intercomponent clouds or streams on the other. |
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