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Three Incomprehensible Binaries
2002
International Astronomical Union Colloquium
AbstractI describe three eclipsing double-lined binaries whose fundamental data (spectra, masses etc.) are totally out of line with theoretical concepts. Accepting the data at face value, they seem to imply that (i) a massive star (about 10 – 30M⊙) in a moderately wide binary (P≈ 50 – 250 d) can eject almost its entire envelope to infinity, without shrinking its period substantially, (b) some formerly triple systems can become binaries through the merger of two of the three components, and (c)
doi:10.1017/s0252921100001202
fatcat:ebacbf3vazfqbf343f2w2b7lry