Properties of CVSO 30 from TESS measurements: probably a binary T Tauri star with complex light curves and no obvious planets

dc.contributor.authorKoen, C.
dc.date.accessioned2021-02-08T12:47:28Z
dc.date.available2021-02-08T12:47:28Z
dc.date.issued2020
dc.description.abstract‘Transiting Exoplanet Survey Satellite’ (TESS) photometry of CVSO 30 spanned 21.8 d, with a single large gap of 1.1 d. This allows alias-free determination of the two periodicities in the data. It is confirmed that both of these are non-sinusoidal: the dominant P1 = 0.4990 d has two detectable harmonics and P2 = 0.4486 d has seven. The large number of harmonics in the second periodicity characterizes a very complex light curve shape. One of the features in the light curve is a sharp dip of duration ∼2 h: this is probably the source of the previously claimed planetary transit signature. The star is a member of a small group of T Tauri stars with complex light curves, which have recently been exhaustively studied using Kepler and TESS observations. The two non-commensurate periods are most simply interpreted as being from two stars, i.e. CVSO 30 is probably a binary.en_US
dc.identifier.citationKoen, C. (2020). Properties of CVSO 30 from TESS measurements: probably a binary T Tauri star with complex light curves and no obvious planets. Monthly Notices of the Royal Astronomical Society, 494(3), 4349–4356en_US
dc.identifier.issn1365-2966
dc.identifier.urihttps://doi.org/10.1093/mnras/staa1038
dc.identifier.urihttp://hdl.handle.net/10566/5866
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.subjectStars: individual: CVSO 30en_US
dc.subjectStars: variables: T Tauri 1 INTRODUCTIONen_US
dc.subjectStellar rotation perioden_US
dc.subjectSinusoidalen_US
dc.titleProperties of CVSO 30 from TESS measurements: probably a binary T Tauri star with complex light curves and no obvious planetsen_US
dc.typeArticleen_US

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