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HD 185151 - A new active-chromosphere binarySpectroscopic 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.
Document ID
19820054824
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/113186
Authors
Bopp, B. W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fekel, F. C., Jr. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Noah, P. V. (Toledo, University Toledo, OH, United States)
Africano, J. (Cloudcroft Observatory Cloudcroft, NM, United States)
Wilkerson, M. S. (USAF, Space Div., Los Angeles CA, United States)
Beavers, W. I. (Fick Observatory Ames, IA, United States)
Hall, D. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Henry, G. W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1982
Publication Information
Publication: Astronomical Journal
Volume: 87
Subject Category
Astronomy
Accession Number
82A38359
Funding Number(s)
CONTRACT_GRANT: NSF AST-77-094050
CONTRACT_GRANT: NSF AST-81-15098
CONTRACT_GRANT: NAG5-67
Distribution Limits
Public
Copyright
Other

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