Abstract
The possibility of detecting changes in the radial velocities of UX Ori stars during eclipses by circumstellar dust clouds is examined. Calculations show that, despite the large sizes of the clouds, this effect may actually be observable and, perhaps, has already been observed during spectral studies of stars of this kind. Monitoring of events of this kind can provide important information about the motion of matter in close proximity to young stars, as well as about the structure of gas-dust clouds shielding a star.
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