Homogeneous transit timing analyses of 10 exoplanet systems

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buir.contributor.authorHelweh, Fadel El
buir.contributor.authorKaramanlı, Ertuğrul
buir.contributor.authorTunç, Ege
buir.contributor.orcidHelweh, Fadel El|0000-0002-3174-1974
buir.contributor.orcidKaramanlı, Ertuğrul|0000-0001-9838-4732
buir.contributor.orcidTunç, Ege|0000-0003-3596-3344
dc.citation.epage2081en_US
dc.citation.issueNumber2en_US
dc.citation.spage2062en_US
dc.citation.volumeNumber512en_US
dc.contributor.authorBaştürk, Ö.
dc.contributor.authorEsmer, E. M.
dc.contributor.authorYalçınkaya, S.
dc.contributor.authorTorun, Ş.
dc.contributor.authorMancini, L.
dc.contributor.authorHelweh, Fadel El
dc.contributor.authorKaramanlı, Ertuğrul
dc.contributor.authorSouthworth, J.
dc.contributor.authorAliş, S.
dc.contributor.authorWünsche, A.
dc.contributor.authorTezcan, F.
dc.contributor.authorAladağ, Y.
dc.contributor.authorAksaker, N.
dc.contributor.authorTunç, Ege
dc.contributor.authorDavoudi, F.
dc.contributor.authorFişek, S.
dc.contributor.authorBretton, M.
dc.contributor.authorEvans, D. F.
dc.contributor.authorYeşilyaprak, C.
dc.contributor.authorYılmaz, M.
dc.contributor.authorTezcan, C. T.
dc.contributor.authorYelkenci, K.
dc.date.accessioned2023-02-14T12:47:19Z
dc.date.available2023-02-14T12:47:19Z
dc.date.issued2022-03-07
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe study the transit timings of 10 exoplanets in order to investigate potential transit timing variations in them. We model their available ground-based light curves, some presented here and others taken from the literature, and homogeneously measure the mid-transit times. We statistically compare our results with published values and find that the measurement errors agree. However, in terms of recovering the possible frequencies, homogeneous sets can be found to be more useful, of which no statistically relevant example has been found for the planets in our study. We corrected the ephemeris information of all 10 planets we studied and provide these most precise light elements as references for future transit observations with space-borne and ground-based instruments. We found no evidence for secular or periodic changes in the orbital periods of the planets in our sample, including the ultra-short period WASP-103 b, whose orbit is expected to decay on an observable time-scale. Therefore, we derive the lower limits for the reduced tidal quality factors (Q) for the host stars based on best-fitting quadratic functions to their timing data. We also present a global model of all available data for WASP-74 b, which has a Gaia parallax-based distance value ∼25 per cent larger than the published value.en_US
dc.identifier.doi10.1093/mnras/stac592en_US
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/11693/111268
dc.language.isoEnglishen_US
dc.publisherOxford University Pressen_US
dc.relation.isversionofhttps://www.doi.org/10.1093/mnras/stac592en_US
dc.source.titleMonthly Notices of the Royal Astronomical Societyen_US
dc.subjectGeometrical opticsen_US
dc.subjectOrbitsen_US
dc.subjectStarsen_US
dc.subjectTiming circuitsen_US
dc.subjectHat-P-32en_US
dc.subjectHat-P-37en_US
dc.subjectHat-P-56en_US
dc.subjectMethodsen_US
dc.subjectObservationalen_US
dc.subjectPlanetary systemsen_US
dc.subjectIndividualen_US
dc.subjectHat-p-23en_US
dc.subjectTechniquesen_US
dc.subjectPhotometricen_US
dc.subjectWasp-103en_US
dc.subjectWasp-14en_US
dc.subjectWasp-2en_US
dc.subjectWasp-37en_US
dc.subjectWasp-69en_US
dc.subjectWasp-74en_US
dc.titleHomogeneous transit timing analyses of 10 exoplanet systemsen_US
dc.typeArticleen_US
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