J/AJ/170/341ivo://CDS.VizieR/J/AJ/170/341CDSSonbas E.Kaplan K.Tanriver M.Keskin A.Dhuga K.Bulut A.,Gogus E.Ogloza W.2026-09-03T10:35:31Z2026-09-03T11:16:27ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frexoplanetsphotometryvisible-astronomyWe present new results for the hot Jupiters HAT-P-16b, TOI-1516b, and TOI-2046b, based on photometric observations collected using both space- and ground-based facilities. Ground-based data were collected in the 2020-2024 time span with the 0.6m telescope (ADYU60) located at the Adiyaman University Application and Research Center (Adiyaman, Turkiye) and the 1.0m telescope at the Turkiye National Observatory (TUG, Turkiye). Through a combination of fits to our ground-based data, the midtransit times data from TESS, and additional data taken from the literature, we present an updated linear ephemeris for each system. Transit timing variations (TTVs) were analyzed using linear, orbital decay, and apsidal precession models. The resulting BIC({Delta}BIC) values indicate that the orbital decay model is statistically favored for HAT-P-16b and TOI-1516b, while the constant period model is preferred for TOI-2046b. False alarm probabilities (FAPs) were computed to assess the significance of any periodic signals. TOI-1516b displays a strong TTV signal with a FAP (of 0.0001) well below the 0.01 threshold, suggesting a likely dynamical origin that warrants further investigation. The higher FAP value (0.0055) for HAT-P-16b suggests that the case of a possible presence of an additional body in the system is less convincing. In contrast, the much higher FAP value (0.0196) for TOI-2046b implies that there are no statistically significant TTVs.2025AJ....170..341Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/341CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/428/1001 : Non-linear limb-dark. law for LTE models. III. (Claret, 2004)J/ApJ/720/1118 : i-band photometry of HAT-P-16 (Buchhave+, 2010)J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/A+A/557/A30 : Transits of HAT-P-16 and WASP-21 (Ciceri+, 2013)J/A+A/602/A107 : 231 transiting planets eccentricity and mass (Bonomo+, 2017)J/AJ/154/4 : Times of transits and occultations of WASP-12b (Patra+, 2017)J/AJ/159/150 : Transit times of 11 hot Jupiters (Patra+, 2020)J/ApJ/888/L5 : Transits, occultation times and RVs of WASP-12b (Yee+, 2020)J/AJ/164/220 : 10 exoplanets from Exoplanet Transit Database (Hagey+, 2022)J/ApJS/259/62 : TESS transit timing of hot Jupiters (Ivshina+, 2022)J/AJ/163/175 : WASP-12 individual transit fit with TESS (Wong+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/341https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/341http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/341https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/341https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/341http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/341GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/170/341/table10Mid-transit times of HAT-P-16, TOI-1516, and TOI-2046recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSystem name (1)meta.id;meta.maincharEpoch[-339/1949] Epoch numbermeta.idintBJD[2455027/2460713] Barycentric Julian date of mid-transitdtime.epochdoublee_BJD[6e-5/6.7e-3] Uncertainty in BJDdstat.error;time.epochdoubleO-C[-22.48/15.09] Residualminstat.fit.residualdoubleRefReferences (2)meta.bibchar