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Title:
Delta CAP - The secondary revealed
Authors:
Wonnacott, D.; Kellett, B. J.; Matthews, L.; Clayton, C. A.; Bromage, G. E.; Lloyd, C.; Sumner, T. J.; Sidher, S. D.
Affiliation:
AA(Rutherford Appleton Lab., Didcot, United Kingdom), AB(Rutherford Appleton Lab., Didcot, United Kingdom), AC(Imperial College of Science, Technology, and Medicine, London, United Kingdom), AD(Rutherford Appleton Lab., Didcot, United Kingdom), AE(Rutherford Appleton Lab., Didcot, United Kingdom), AF(Rutherford Appleton Lab., Didcot, United Kingdom), AG(Imperial College of Science, Technology, and Medicine, London, United Kingdom), AH(Imperial College of Science, Technology, and Medicine, London, United Kingdom)
Publication:
Royal Astronomical Society, Monthly Notices (ISSN 0035-8711), vol. 259, no. 2, p. 251-258. (MNRAS Homepage)
Publication Date:
11/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ECLIPSING BINARY STARS, ULTRAVIOLET ASTRONOMY, ULTRAVIOLET EMISSION, EXTREME ULTRAVIOLET RADIATION, STELLAR OSCILLATIONS, ULTRAVIOLET PHOTOMETRY
Bibliographic Code:
1992MNRAS.259..251W

Abstract

The recent detection of the eclipsing metallic-lined binary Delta Cap in the EUV as part of the Wide-Field Camera All-Sky Survey has prompted a reexamination of the available data in order to attempt to locate the source of the emission. It can be shown that a white dwarf is unable to account for the emission, and the possibility of coronal emission on one of the four other faint objects within the WFC error circle and on the Am star can be rejected. The available data are consistent with the visually unseen secondary being weakly active.

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