J/A+A/622/A81ivo://CDS.VizieR/J/A+A/622/A81doi:10.26093/cds/vizier.36220081CDSMallonn M.von Essen C.Herrero E.Alexoudi X.Granzer T.Sosa M.,Strassmeier K.G.Bakos G.Bayliss D.Brahm R.Bretton M.Campos F.,Carone L.Colon K.D.Dale H.A.Dragomir D.Espinoza N.Evans P.,Garcia F.Gu S.-H.Guerra P.Jongen Y.Jordan A.Kang W.Keles E.,Kim T.Lendl M.Molina D.Salisbury M.Scaggiante F.Shporer A.,Siverd R.Sokov E.Sokova I.Wuensche A.2019-02-01T12:17:01Z2019-01-31T09:05:47ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryTransit events of extrasolar planets offer a wealth of information for planetary characterization. However, for many known targets, the uncertainty of their predicted transit windows prohibits an accurate scheduling of follow-up observations. In this work, we refine the ephemerides of 21 hot Jupiter exoplanets with the largest timing uncertainties. We collected 120 professional and amateur transit light curves of the targets of interest, observed with a range of telescopes of 0.3m-2.2m, and analyzed them along with the timing information of the planets discovery papers. In the case of WASP-117b, we measured a timing deviation compared to the known ephemeris of about 3.5h, and for HAT-P-29b and HAT-P-31b the deviation amounted to about 2h and more. For all targets, the new ephemeris predicts transit timings with uncertainties of less than 6-min in the year 2018 and less than 13-min until 2025. Thus, our results allow for an accurate scheduling of follow-up observations in the next decade.2019A&A...622A..81Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/622/A81CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/622/A81https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/622/A81http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/622/A81https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/622/A81https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/622/A81http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/622/A81GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/622/A81/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/622/A81/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/622/A81/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/622/A81/stars?GETtext/xml+votable180.050000true48.435416725.19741670.0055555555555555566/790 2308 2551 2715 2740 10701 12862 21989 25950 29683 30344 32217 32564 33723 45855https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/622/A81?format=asciidefaultJ/A+A/622/A81/erpseERPSE differential transit photometrye_dmagUncertainty of differential magnitudemagstat.error;phot.magdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectTarget of interestmeta.id;meta.maincharTelTelescopemeta.id;instr.telcharFilt[R V i' r'] Photometric filtermeta.notecharBJDBarycentric Julian Date (BJD-2400000), TDBdtime.epochdoubledmagDifferential magnitudemagphot.mag;arith.diffdoubleJ/A+A/622/A81/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectTarget of interestmeta.id;meta.maincharRAJ2000Simbad right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainSNameSimbad namemeta.idcharLCLight curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar