J/A+A/667/A1ivo://CDS.VizieR/J/A+A/667/A1doi:10.26093/cds/vizier.36670001CDSSerrano L.M.Gandolfi D.Hoyer S.Brandeker A.Hooton M.J.Sousa S.,Murgas F.Ciardi D.R.Howell S.B.Benz W.Billot N.Floren H.-G.,Bekkelien A.Bonfanti A.Krenn A.Mustill A.J.Wilson T.G.Osborn H.,Parviainen H.Heidari N.Palle E.Fridlund M.Adibekyan V.Fossati L.,Deleuil M.Knudstrup E.Collins K.A.Lam K.W.F.Grziwa S.Salmon S.,Albrecht S.H.Alibert Y.Alonso R.Anglada-Escude G.Barczy T.,Barrado y Navascues D.Barros S.C.C.Baumjohann W.Beck M.Beck T.,Bieryla A.Bonfils X.Boyd P.T.Broeg C.Cabrera J.Charnoz S.,Chazelas B.Christiansen J.L.Collier Cameron A.Cortes-Zuleta P.,Csizmadia Sz.Davies M.B.Deline A.Delrez L.Demangeon O.D.S.,Demory B.-O.Dunlavey A.Ehrenreich D.Erikson A.Fortier A.Fukui A.,Garai Z.Gillon M.Guedel M.Hebrard G.Heng K.Huang C.X.Isaak K.G.,Jenkins J.M.Kiss L.L.Laskar J.Latham D.W.Lecavelier des Etangs A.,Lendl M.Levine A.M.Lovis C.Lund M.B.Magrin D.Maxted P.F.L.,Narita N.Nascimbeni V.Olofsson G.Ottensamer R.Pagano I.,Pessanha A.C.S.V.Peter G.Piotto G.Pollacco D.Queloz D.,Ragazzoni R.Rando N.Ratti F.Rauer H.Ribas I.Ricker G.Rowden P.,Santos N.C.Scandariato G.Seager S.Segransan D.Simon A.E.,Smith A.M.S.Steller M.Szabo Gy.M.Thomas N.Twicken J.D.Udry S.,Ulmer B.Van Grootel V.Vanderspek R.Viotto V.Walton N.2024-11-06T20:01:07Z2022-10-28T09:26:47ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryvisible-astronomyWe present the discovery of two small planets transiting HD 93963A (TOI-1797), a GOV star (M*=1.109+/-0.043M_{sun}_, R* = 1.043+/-0.009R_{sun}_) in a visual binary system. We combined TESS and CHEOPS space-borne photometry with MuSCAT 2 ground-based photometry, 'Alopeke and PHARO high-resolution imaging, TRES and FIES reconnaissance spectroscopy, and SOPHIE radial velocity measurements. We validated and spectroscopically confirmed the outer transiting planet HD 93963 A c, a sub-Neptune with an orbital period of Pc~=3.65d that was reported to be a TESS object of interest (TOI) shortly after the release of Sector 22 data. HD 93963 A c has amass of Mc=19.2+/-4.1M_Earth_ and a radius of Rc=3.228+/-0.059R_Earth_, implying a mean density of {rho}_c_=3.1+/-0.7g/cm^3^. The inner object, HD 93963 A b, is a validated 1.04 d ultra-short period (USP) transiting super-Earth that we discovered in the TESS light curve and that was not listed as a TOI, owing to the low significance of its signal (TESS signal-to-noise ratio ~6.7, TESS + CHEOPS combined transit depth Db=141.5_-8.3_^+8.5^ppm). We intensively monitored the star with CHEOPS by performing nine transit observations to confirm the presence of the inner planet and validate the system. HD 93963 A b is the first small (Rb=1.35+/-0.042R_Earth_) USP planet discovered and validated by TESS and CHEOPS. Unlike planet c, HD 93963 Ab is not significantly detected in our radial velocities (Mb=7.8+/-3.2M_Earth_). The two planets are on either side of the radius valley, implying that they could have undergone completely different evolution processes. We also discovered a linear trend in our Doppler measurements, suggesting the possible presence of a long-period outer planet. With a V-band magnitude of 9.2, HD 93963 A is among the brightest stars known to host a USP planet, making it one of the most favourable targets for precise mass measurement via Doppler spectroscopy and an important laboratory to test formation, evolution, and migration models of planetary systems hosting ultra-short period planets.2022A&A...667A...1Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/667/A1CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/667/A1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/667/A1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/667/A1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/667/A1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/667/A1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/667/A1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/667/A1/drplc01Data from archive file CH_PR110045_TG001301_V0200TimeTime of mid-exposure (JD)dtime.epochdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc02Data from archive file CH_PR110045_TG001601_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc03Data from archive file CH_PR100031_TG037201_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc04Data from archive file CH_PR110045_TG001801_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc05Data from archive file CH_PR110045_TG001901_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc06Data from archive file CH_PR110045_TG002001_V0200FluxNormalized fluxphot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc07Data from archive file CH_PR110045_TG002301_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc08Data from archive file CH_PR100031_TG039701_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/drplc09Data from archive file CH_PR100031_TG039601_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublesmearFraction of flux in aperture from readout trailsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc01Data from archive file CH_PR110045_TG001301_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc02Data from archive file CH_PR110045_TG001601_V0200e_FluxNormalized flux errorstat.error;phot.fluxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc03Data from archive file CH_PR100031_TG037201_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc04Data from archive file CH_PR110045_TG001801_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc05Data from archive file CH_PR110045_TG001901_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc06Data from archive file CH_PR110045_TG002001_V0200rollSpacecraft roll angledeginstr.offsetdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc07Data from archive file CH_PR110045_TG002301_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc08Data from archive file CH_PR100031_TG039701_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/pipelc09Data from archive file CH_PR100031_TG039601_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoublexoffTarget position offset in x-directionpixpos;arith.diffdoubleyoffTarget position offset in y-directionpixpos;arith.diffdoublerollSpacecraft roll angledeginstr.offsetdoublecontamFraction of flux in aperture from nearby starsinstr.backgrounddoublebgFraction of flux in aperture from backgroundinstr.backgrounddoubleTemp2thermFront_2 temperature sensor readingphys.temperaturefloatJ/A+A/667/A1/detlc01Pipe detrended data from archive file CH_PR110045_TG001301_V0200FluxDetrended fluxphot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc02Pipe detrended data from archive file CH_PR110045_TG001601_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc03Pipe detrended data from archive file CH_PR100031_TG037201_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc04Pipe detrended data from archive file CH_PR110045_TG001801_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc05Pipe detrended data from archive file CH_PR110045_TG001901_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc06Pipe detrended data from archive file CH_PR110045_TG002001_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc07Pipe detrended data from archive file CH_PR110045_TG002301_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc08Pipe detrended data from archive file CH_PR100031_TG039701_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdoubleJ/A+A/667/A1/detlc09Pipe detrended data from archive file CH_PR100031_TG039601_V0200recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of mid-exposure (JD)dtime.epochdoubleFluxDetrended fluxphot.flux;arith.ratiodoublee_FluxNormalized flux errorstat.error;phot.fluxdouble