The close binary system SU Ind

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dc.contributor.authorBudding, E.
dc.contributor.authorRhodes, M.
dc.contributor.authorPriestley, J.
dc.contributor.authorZeilik, M.
dc.date.accessioned2025-01-27T18:53:07Z
dc.date.available2025-01-27T18:53:07Z
dc.date.issued2004
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPhotometric data on the southern mid-F type close eclipsing binary system SU Ind from the Carter Observatory (NZ) were examined, together with a light curve obtained from the Hipparcos Epoch Photometry (HEP) database. The system appears detached, although appreciably evolved from the Zero Age Main Sequence. The HEP period must be accurate for its own epoch, but it is significantly different from the reference (Hoffmeister 1956) value. This is difficult to explain, given the uncomplicated nature of the light curve. The apparent discrepancy can be reconciled with a period that has remained almost constant over the 40 year interval between the epochs by assuming some confusion between the almost equal depth minima. The near-equality of components raises issues of determinacy in light curve analysis, which are reviewed against the presentation of relevant numerical curve-fitting details. The system is of physical interest, in that it is close to the start of the 'active' range of spectral types. Its stars have relatively rapid rotation speeds and probably shallow convective sub-photospheric layers.
dc.identifier.doi10.1002/asna.200310237
dc.identifier.endpage438
dc.identifier.issn0004-6337
dc.identifier.issue5
dc.identifier.scopus2-s2.0-4644222246
dc.identifier.scopusqualityQ3
dc.identifier.startpage433
dc.identifier.urihttps://doi.org/10.1002/asna.200310237
dc.identifier.urihttps://hdl.handle.net/20.500.12428/12594
dc.identifier.volume325
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofAstronomische Nachrichten
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250125
dc.subjectStars: activity; Stars: close binaries; Stars: individual (SU Ind); Techniques: photometric light curve analysis
dc.titleThe close binary system SU Ind
dc.typeArticle

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