Photometric studies of three Be stars |
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Authors: | Gao Wei-shi Guo Xiao-zhen Guo Yu-lian Cao Hui-lai |
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Institution: | Beijing Observatory, Academia Sinica, China |
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Abstract: | From 1978 December to 1979 May, we made spectrographic observations of φPer, ζTau and κDra using our
Schmidt cassegrain grating spectrograph. Values of electron density, rotational speed and
variation have been obtained and a comparison between ζTau and the supergiant βOri carried out. We found that, over our observed period, θPer showed clear shell activities, ζTau was in a relatively calm phase, its shell slowly expanding, while κDra had all the signs of a “classical” Be star. |
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