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The rotation of alpha Oph investigated using polarimetry

Bailey, J; Cotton, Daniel; Howarth, Ian D.; Lewis, Fiona; Kedziora-Chudczer, Lucyna


Recently we have demonstrated that high-precision polarization observations can detect the polarization resulting from the rotational distortion of a rapidly rotating B-type star. Here, we investigate the extension of this approach to an A-type star. Linear-polarization observations of α Oph (A5IV) have been obtained over wavelengths from 400 to 750 nm. They show the wavelength dependence expected for a rapidly rotating star combined with a contribution from interstellar polarization. We model...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/staa785
Access Rights: Open Access


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