NASA NTRS · 19840034713
Observations of active chromosphere stars
Abstract
It is pointed out that spectroscopic signatures of stellar chromospheric activity are readily observable. The present study is concerned with new photometric and spectroscopic observations of active-chromosphere RS CVn, BY Dra, and FK Com stars. Attention is given to the first results of a synoptic monitoring program of many active chromosphere stars. During the time from 1980 to 1982, photometric and spectroscopic observations of 10 known or suspected active-chromosphere objects were made. The results regarding the individual stars are discussed. Seven stars observed with the International Ultraviolet Explorer (IUE) are all spectroscopic binaries.
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Africano, J. L., Klimke, A., Stencel, R. E., Noah, P. V., Bopp, B. W.. 1983-12-15. Observations of active chromosphere stars. https://ntrs.nasa.gov/citations/19840034713
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