Galactic Astronomy in the Ultraviolet |
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Authors: | A S Rastorguev M E Sachkov M V Zabolotskikh |
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Institution: | 1.Sternberg Astronomical Institute,Moscow State University,Moscow,Russia;2.Institute of Astronomy,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | We propose a number of prospective observational programs for the ultraviolet space observatory WSO-UV, which seem to be of great importance to modern galactic astronomy. The programs include the search for binary Cepheids; the search and detailed photometric study and the analysis of radial distribution of UV-bright stars in globular clusters (“blue stragglers”, blue horizontal-branch stars, RR Lyrae variables, white dwarfs, and stars with UV excesses); the investigation of stellar content and kinematics of young open clusters and associations; the study of spectral energy distribution in hot stars, including calculation of the extinction curves in the UV, optical and NIR; and accurate definition of the relations between the UV-colors and effective temperature. The high angular resolution of the observatory allows accurate astrometric measurements of stellar proper motions and their kinematic analysis. |
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