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Establishing α Oph as a prototype rotator: Improved astrometric orbit

Hinkley, Sasha; Monnier, J. D.; Oppenheimer, Ben R; Roberts, Jr., Lewis C; Zimmerman, N; Brenner, Douglas; Parry, Ian R; Martinache, Frantz; Lai, Olivier; Soummer, Remi; Ireland, Michael


The nearby star a Oph (Ras Alhague) is a rapidly rotating A5IV star spinning at ∼ 89% of its breakup velocity. This system has been imaged extensively by interferometric techniques, giving a precise geometric model of the star's oblateness and the resul

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/726/2/104


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