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A Photometric-Spectroscopic Analysis of the Algol-Type Binary U CRB

Published online by Cambridge University Press:  12 April 2016

R.H. van Gent
R.H. van Gent*
Affiliation:
Astronomical Institute Utrecht,P.O. Box 80 000, 3508 TA Utrecht,The Netherlands

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U CrB is a well-known Algol-type eclipsing binary (P = 3ḍ522, spectrum B6 V + GO III-IV). Although the system has been closely observed since it’s discovery (Winnecke, 1870), progress in unraveling its true nature has been slow.

Early spectroscopic work suggested an early-type spectrum for the secondary which was in variance with the near absence of a secondary eclipse in the lightcurve. Rapid variations were also noted in the lightcurve (Lause, 1938; Batten, 1964; Piotrowski et al., 1974; Olson, 1982), which are only partly attributable to the variability of the commonly used comparison star HD 137147 (Olson, 1980; van Gent, 1982a).

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 107: Algols , 1989 , pp. 264 - 268
Copyright
Copyright © Kluwer 1989

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