J/AJ/162/210ivo://CDS.VizieR/J/AJ/162/210doi:10.26093/cds/vizier.51620210CDSDavoudi F.Basturk O.Yalcinkaya S.Esmer E.M.Safari H.2023-12-20T08:28:13Z2022-01-26T08:57:41ZCDS support team

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

cds-question@unistra.frexoplanetsinfrared-photometryvisible-astronomyWASP-43b is one of the most important candidates for detecting an orbital decay. We investigate pieces of evidence for this expectation as variations in its transit timings, based on the ground and space observations. The data set includes the transit observations at the TUBITAK National Observatory of Turkey and Transiting Exoplanet Survey Satellite (TESS). We present a global model of the system, based on the most precise photometry from space, ground, and archival radial velocity data. Using the homogenized data set and modeled light curves, we measure the mid-transit times for WASP-43b. Our analysis agrees with a linear ephemeris for which we refine the light elements for future observations of the system. However, there is a negative difference between the transit timings derived from TESS data in two sectors (9 and 35) and a hint of an orbital period decrease in the entire data set. Both findings are statistically insignificant due to the short baseline of observations, which prevents us from drawing firm conclusions about the orbital decay of this ultra-short-period planet. However, assuming the effect of this decrease of the period in the planet's orbit, we derive a lower limit for the reduced tidal quality factor as Q*'>(4.01{+/-}1.15)x10^5^ from the best-fitting quadratic function. Finally, we calculate a probable rotational period for this system as 7.52days from the out-of-transit flux variation in the TESS light curves due to spot modulation.2021AJ....162..210Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/210CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/542/A4 : WASP-43b thirty eclipses (Gillon+, 2012)J/A+A/555/A150 : Physical parameters of cool solar-type stars (Tsantaki+, 2013)J/A+A/562/L3 : WASP-103b radial velocities and light curves (Gillon+, 2014)J/A+A/563/A40 : WASP-43b g'r'i'z'JHK light curves (Chen+, 2014)J/A+A/563/A41 : WASP-43 OSIRIS transmission spectroscopy (Murgas+, 2014)J/MNRAS/440/1470 : Ji light curves of WTS-2 (Birkby+, 2014)J/PASP/127/143 : WASP-39b and WASP-43b light curves (Ricci+, 2015)J/AJ/151/17 : Eight transiting light curves of WASP-43b (Jiang+, 2016)J/AJ/152/182 : iz follow-up photometry HAT-P-65 and HAT-P-66 (Hartman+, 2016)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/A+A/620/A58 : SWEET-Cat updated (Sousa+, 2018)J/AJ/155/165 : Dissipation exoplanet hosts from tidal spin-up (Penev+, 2018)J/AJ/156/18 : APOGEE DR14:Binary comps evolved stars (Price-Whelan+, 2018)J/MNRAS/490/4230 : Transiting planet WASP-4b (Southworth+, 2019)J/AJ/159/150 : Transit times of 11 hot Jupiters (Patra+, 2020)J/AJ/160/155 : Light curve segments of 22 host stars with TESS (Wong+, 2020)J/ApJ/888/L5 : Transits, occultation times and RVs of WASP-12b (Yee+, 2020)J/ApJS/250/20 : PRot in TESS objects of interest (TOIs) (Canto+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/210https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/210http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/210https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/210https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/210http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/210GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/162/210/tablea2Details of the TTV diagram and some transit parameters derived from exofast-v1O-C[-0.02/0.02] O-Cdstat.fit.residualdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMidTime[2455537/2459280]? Measured Mid-Transit Timedtime.epochdoublenullablee_MidTime[0.00001/0.0009]? Error on MidTimedstat.errordoublenullableMidTimeO[2455537/2459254]? Observer-Provided Mid-Transit Timedtime.epochdoublenullablee_MidTimeO[0/0.002]? Error on MidTimeOdstat.errordoublenullableEpoch[-1909/2691] Epoch of Observationtime.epochfloatRes[-0.02/0.02] Residuals From The Linear Fitdstat.fit.residualdoubleBandPassbandinstr.bandpasscharLCTypeLight Curve referencemeta.refcharDelta[0.01/0.04]? Transit Depthphot.flux.density;arith.diffdoublenullablee_Delta[0.00001/0.002]? Error of the Transit Depthstat.error;pos.eq.decdoublenullableT14[0.04/0.08]? Transit Durationdtime.durationdoublenullableFWHM[0.03/0.07]? FWHM Durationdinstr.bandwidthdoublenullablee_FWHM[0.00002/0.002]? Error of the FWHM Durationdstat.error;phys.angSizedoublenullableTau[0.006/0.02]? Ingress/egress durationdtime.durationdoublenullablee_Tau[0.00003/0.004]? Error on Taudstat.errordoublenullableBeta[0.21/2.91]? Beta (Red Noise Parameter)instr.det.noisefloatnullablePNR[0.2/8.87]? PNR (White Noise Parameter in ppt)instr.det.noisefloatnullableRMS[0.0002/0.007]? RMS Error from the Modelstat.errordoublenullableDis?[0/1] 0=Discardedmeta.codeintOut[*] Outlier not included in TTV analysismeta.codechar