Barbosa |
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Bastian |
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Blum |
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Brott |
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Caballero |
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Chen |
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Chita |
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Chu |
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Churchwell |
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Corcoran |
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Crowther |
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Damineli et al |
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Damineli |
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Fullerton |
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Gagne |
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Gallagher |
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Garcia |
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Garmany |
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Georgiev |
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Hamann |
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Hillier |
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Howarth |
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Indebetouw |
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Kobulnicky |
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Koenigsberger |
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Lang |
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Leitherer |
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Lennon |
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Levesque |
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Linder |
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Maeder |
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Massa |
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Massey |
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McSwain |
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Moffat |
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Moises |
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Morrell |
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Morris |
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Naze |
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Nieva |
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Olsen |
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Oskinova |
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Owocki |
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Penny |
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Przybilla |
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Skinner |
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Smith |
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Soderberg |
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Teodoro |
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Testor |
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Townsley |
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Vacca |
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Vink |
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Wachter |
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Walborn |
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Wallerstein |
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Whelan |
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Willis |
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van den Heuvel |
A Brace of Bothersome Binaries
Ian Howarth
Dept. Physics and Astronomy, UCL
It doesn't seem so long since Peter was conducting a series of pioneering "Spectroscopic studies of O-type binaries", one aspect of his work on establishing fundamental parameters at the top end of the HR diagram. Luckily for those of us trying to follow in some of his footsteps, there are still plenty of interesting O-type binaries to be solved. Here I show some preliminary results for two such systems, BD+36 4063 and Cyg OB2#3, each having a well-determined orbit but each showing some nagging puzzles.
