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

  • R.H. van Gent (a1)
Extract

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).

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Copyright
COPYRIGHT: © Kluwer 1989
References
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  • EISSN: 0252-9211
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