The T Tauri star RU Lupi and its circumstellar surrounding |
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| Authors: | GF Gahm HL Nordh SG Olofsson |
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| Institution: | Stockholm Observatory, Sweden |
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| Abstract: | From simultaneous spectroscopic and photometric observations of the T Tauri star RU Lup, which was followed for nine consecutive nights, it was found that most if not all of the light variations observed on this star were caused by variable circumstellar extinction. The character and the time-scale of the variations imply that the variations are due to dust concentrations of stellar dimension crossing the line of sight to the star. The implications of this interpretation and its possible bearing on problems of protoplanetary systems are discussed. |
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