NASA NTRS · 19820054824
HD 185151 - A new active-chromosphere binary
Abstract
Spectroscopic and photometric observations of the K2III star HD 185151 are reported which establish it as a chromospherically active binary with an orbital period of 40.1 days. Reticon observation of the hydrogen alpha region shows a partially filled profile, owing presumably to chromospheric emission, as well as a blue emission wing extending out about 100 km/s. The light curve is effectively a double sine curve, and can be modeled by two starspots separated by almost exactly 180 deg in longitude.
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Bopp, B. W., Fekel, F. C., Jr., Noah, P. V., Africano, J., Wilkerson, M. S., Beavers, W. I., Hall, D. S., Henry, G. W.. 1982-07-01. HD 185151 - A new active-chromosphere binary. https://ntrs.nasa.gov/citations/19820054824
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