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The radius and mass of the close solar twin 18 Scorpii derived from asteroseismology and interferometry

Bazot, M.; Huber, D; Bedding, Timothy Russell; Broomhall, A.-M.; Campante, T. L.; Carfantan, H; Chaplin, W J; Elsworth, Y; Asplund, Martin; Castro, M.; Do Nascimento, J. D.; Ireland, Michael


The growing interest in solar twins is motivated by the possibility of comparing them directly to the Sun. To carry on this kind of analysis, we need to know their physical characteristics with precision. Our first objective is to use asteroseismology and interferometry on the brightest of them: 18 Sco. We observed the star during 12 nights with HARPS for seismology and used the PAVO beam-combiner at CHARA for interferometry. An average large frequency separation 134.4 ± 0.3 μHz and angular and...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201015679
Access Rights: Open Access


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