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Paper: The eclipsing P Cygni-type star R 81 in the LMC
Volume: 233, P Cygni 2000: 400 Years of Progress
Page: 163
Authors: Tubbesing, S.; Kaufer, A.; Schmid, H. M.; Stahl, O.; Wolf, B.
Abstract: R 81, the only known P Cygni-type star in an eclipsing binary system has been monitored spectroscopically and photometrically for almost 3 months. Based on these data we derive orbital and stellar parameters for this system. R 81 is probably a semi-detached binary with strong interaction. The primary shows strong quasi-periodic non-radial pulsations. The nature of the companion is hard to determine because it is embedded in an extended envelope.
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