J/A+A/664/A156ivo://CDS.VizieR/J/A+A/664/A156doi:10.26093/cds/vizier.36640156CDSOsborn H.P.Bonfanti A.Gandolfi D.Hedges C.Leleu A.Fortier A.,Futyan D.Gutermann P.Maxted P.F.L.Borsato L.Collins K.A.,Gomes da Silva J.Gomez Maqueo Chew Y.Hooton M.J.Lendl M.,Parviainen H.Salmon S.Schanche N.Serrano L.M.Sousa S.G.Tuson A.,Ulmer-Moll S.Van Grootel V.Wells R.D.Wilson T.G.Alibert Y.,Alonso R.Anglada G.Asquier J.Barrado y Navascues D.Baumjohann W.,Beck T.Benz W.Biondi F.Bonfils X.Bouchy F.Brandeker A.Broeg C.,Barczy T.Barros S.C.C.Cabrera J.Charnoz S.Collier Cameron A.,Csizmadia S.Davies M.B.Deleuil M.Delrez L.Demory B.-O.,Ehrenreich D.Erikson A.Fossati L.Fridlund M.Gillon M.,Gomez-Munoz M.A.Guedel M.Heng K.Hoyer S.Isaak K.G.Kiss L.,Laskar J.Lecavelier des Etangs A.Lovis C.Magrin D.Malavolta L.,McCormac J.Nascimbeni V.Olofsson G.Ottensamer R.Pagano I.,Palle E.Peter G.Piazza D.Piotto G.Pollacco D.Queloz D.,Ragazzoni R.Rando N.Rauer H.Reimers C.Ribas I.Demangeon O.D.S.,Smith A.M.S.Sabin L.Santos N.Scandariato G.Schroffenegger U.,Schwarz R.P.Shporer A.Simon A.E.Steller M.Szabo G.M.Segransan D.,Thomas N.Udry S.Walter I.Walton N.2023-03-20T14:16:29Z2022-08-25T09:11:19ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryTOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G=8.9mag), young (340+/-80Myr) K-type star. Although a validated planetary system, the orbits of the two outer planets were unconstrained as only two non-consecutive transits were seen in TESS photometry. This left 11 and 7 possible period aliases for each. To reveal the true orbits of these two long-period planets, precise photometry targeted on the highest- probability period aliases is required. Long-term monitoring of transits in multi-planet systems can also help constrain planetary masses through TTV measurements. We used the MonoTools package to determine which aliases to follow, and then performed space-based and ground-based photometric follow-up of TOI-2076 c and d with CHEOPS, SAINT-EX, and LCO telescopes. CHEOPS observations revealed a clear detection for TOI-2076 c at P=21.01538^+0.00084^_-0.00074_d, and allowed us to rule out three of the most likely period aliases for TOI-2076 d. Ground-based photometry further enabled us to rule out remaining aliases and confirm the P=35.12537+/-0.00067d alias. These observations also improved the radius precision of all three sub- Neptunes to 2.518+/-0.036, 3.497+/-0.043, and 3.232+/-0.063 R_{Earth}_. Our observations also revealed a clear anti-correlated TTV signal between planets b and c likely caused by their proximity to the 2:1 resonance, while planets c and d appear close to a 5:3 period commensurability, although model degeneracy meant we were unable to retrieve robust TTV masses. Their inflated radii, likely due to extended H-He atmospheres, combined with low insolation makes all three planets excellent candidates for future comparative transmission spectroscopy with JWST.2022A&A...664A.156Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A156CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A156https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A156http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A156https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A156https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A156http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A156GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/664/A156/cheops_0Cheops visit 4 photometry and best-fit models (File key CH_PR110048_TG003701_V0200)TimeBarycentric Julian Date (BJD-2457000)dtime.epochdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintphiCHEOPS spacecraft roll angle (in degrees) adjusted to be near-continuousdegsrc.orbitaldoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoublesmearVertical read-out smear as computed by the CHEOPS DRPinstr.paramdoubledeltaTChange in on-board CHEOPS temperature as computed by the DRPphys.temperaturedoublebgBackground contaminant flux as computed by the CHEOPS DRPinstr.backgrounddoublesinphiSine of CHEOPS spacecraft roll anglesrc.orbitaldoublecosphiCosine of CHEOPS spacecraft roll anglesrc.orbitaldoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelledfloatplxsdError on best-fit planetary transit model (standard deviation)stat.errorfloatJ/A+A/664/A156/cheops_1Cheops visit 3 photometry and best-fit models (File key CH_PR110048_TG003601_V0200)FluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoublephiCHEOPS spacecraft roll angle (in degrees) adjusted to be near-continuousdegsrc.orbitaldoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoublesmearvertical read-out smear as computed by the CHEOPS DRPinstr.paramdoubledeltaTChange in on-board CHEOPS temperature as computed by the DRPphys.temperaturedoublebgBackground contaminant flux as computed by the CHEOPS DRPinstr.backgrounddoublesinphiSine of CHEOPS spacecraft roll anglesrc.orbitaldoublecosphiCosine of CHEOPS spacecraft roll anglesrc.orbitaldoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/cheops_2Cheops visit 2 photometry and best-fit models (File key CH_PR110048_TG003201_V0200)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoublephiCHEOPS spacecraft roll angle (in degrees) adjusted to be near-continuousdegsrc.orbitaldoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoublesmearvertical read-out smear as computed by the CHEOPS DRPinstr.paramdoubledeltaTChange in on-board CHEOPS temperature as computed by the DRPphys.temperaturedoublebgBackground contaminant flux as computed by the CHEOPS DRPinstr.backgrounddoublesinphiSine of CHEOPS spacecraft roll anglesrc.orbitaldoublecosphiCosine of CHEOPS spacecraft roll anglesrc.orbitaldoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelledfloatplxsdError on best-fit planetary transit model (standard deviation)stat.errorfloatJ/A+A/664/A156/cheops_3Cheops visit 1 photometry and best-fit models (File key CH_PR110048_TG002501_V0200)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoublephiCHEOPS spacecraft roll angle (in degrees) adjusted to be near-continuousdegsrc.orbitaldoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoublesmearvertical read-out smear as computed by the CHEOPS DRPinstr.paramdoubledeltaTChange in on-board CHEOPS temperature as computed by the DRPphys.temperaturedoublebgBackground contaminant flux as computed by the CHEOPS DRPinstr.backgrounddoublesinphiSine of CHEOPS spacecraft roll anglesrc.orbitaldoublecosphiCosine of CHEOPS spacecraft roll anglesrc.orbitaldoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/g_lcoLCO/MuSCAT3 photometry and best-fit models in g bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoubleAirmassAirmass of starobs.airMassdoubleEntropyPSF fit model entropy from MuSCAT DRPstat.fit.paramdoubleWidthPSF with from AstroImageJinstr.det.psfdoubleXPSF x-centroid from AIJpos.cartesian.x;instr.platedoubleYPSF y-centroid from AIJpos.cartesian.y;instr.platedoubleFWHMPSF full-width-half-maximum from AIJinstr.det.psfdoublecompctsTotal comparison star flux counts as computed with AIJphot.count;arith.ratiodoubleg/rInterpolated weighted flux normalised colour ratio between MuSCAT3 bands g & rphot.flux;arith.ratiodoubler/iInterpolated weighted flux normalised colour ratio between MuSCAT3 bands r & iphot.flux;arith.ratiodoublei/zInterpolated weighted flux normalised colour ratio between MuSCAT3 bands i & zphot.flux;arith.ratiodoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/r_lcoLCO/MuSCAT3 photometry and best-fit models in r bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoubleAirmassAirmass of starobs.airMassdoubleEntropyPSF fit model entropy from MuSCAT DRPstat.fit.paramdoubleWidthPSF with from AstroImageJinstr.det.psfdoubleXPSF x-centroid from AIJpos.cartesian.x;instr.platedoubleYPSF y-centroid from AIJpos.cartesian.y;instr.platedoubleFWHMPSF full-width-half-maximum from AIJinstr.det.psfdoublecompctsTotal comparison star flux counts as computed with AIJphot.count;arith.ratiodoubleg/rInterpolated weighted flux normalised colour ratio between MuSCAT3 bands g & rphot.flux;arith.ratiodoubler/iInterpolated weighted flux normalised colour ratio between MuSCAT3 bands r & iphot.flux;arith.ratiodoublei/zInterpolated weighted flux normalised colour ratio between MuSCAT3 bands i & zphot.flux;arith.ratiodoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/i_lcoLCO/MuSCAT3 photometry and best-fit models in i bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoubleAirmassAirmass of starobs.airMassdoubleEntropyPSF fit model entropy from MuSCAT DRPstat.fit.paramdoubleWidthPSF with from AstroImageJinstr.det.psfdoubleXPSF x-centroid from AIJpos.cartesian.x;instr.platedoubleYPSF y-centroid from AIJpos.cartesian.y;instr.platedoubleFWHMPSF full-width-half-maximum from AIJinstr.det.psfdoublecompctsTotal comparison star flux counts as computed with AIJphot.count;arith.ratiodoubleg/rInterpolated weighted flux normalised colour ratio between MuSCAT3 bands g & rphot.flux;arith.ratiodoubler/iInterpolated weighted flux normalised colour ratio between MuSCAT3 bands r & iphot.flux;arith.ratiodoublei/zInterpolated weighted flux normalised colour ratio between MuSCAT3 bands i & zphot.flux;arith.ratiodoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/z_lcoLCO/MuSCAT3 photometry and best-fit models in z bandAirmassAirmass of starobs.airMassdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoubleEntropyPSF fit model entropy from MuSCAT DRPstat.fit.paramdoubleWidthPSF with from AstroImageJinstr.det.psfdoubleXPSF x-centroid from AIJpos.cartesian.x;instr.platedoubleYPSF y-centroid from AIJpos.cartesian.y;instr.platedoubleFWHMPSF full-width-half-maximum from AIJinstr.det.psfdoublecompctsTotal comparison star flux counts as computed with AIJphot.count;arith.ratiodoubleg/rInterpolated weighted flux normalised colour ratio between MuSCAT3 bands g & rphot.flux;arith.ratiodoubler/iInterpolated weighted flux normalised colour ratio between MuSCAT3 bands r & iphot.flux;arith.ratiodoublei/zInterpolated weighted flux normalised colour ratio between MuSCAT3 bands i & zphot.flux;arith.ratiodoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/r_sexSaint-Ex photometry and best-fit models in r bandYPSF y-centroid from AIJpos.cartesian.y;instr.platedoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_FluxFlux standard deviation (in ppt)stat.error;phot.fluxdoubleAirmassAirmass of starobs.airMassdoubleWidthPSF with from AstroImageJinstr.det.psfdoubleXPSF x-centroid from AIJpos.cartesian.x;instr.platedoubleFWHMPSF full-width-half-maximum from AIJinstr.det.psfdoublecompctsTotal comparison star flux counts as computed with AIJphot.count;arith.ratiodoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelleddoubleplxsdError on best-fit planetary transit model (standard deviation)stat.errordoublesummodxmedBest-fit combined flux correction and transit model (median)phot.mag;arith.diffdoublesummodxsdError on best-fit combined flux correction and transit model (standard deviation)stat.errordoubleJ/A+A/664/A156/z_mcdLCO/1m McDonald photometry and best-fit models in z bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeBarycentric Julian Date (BJD-2457000)dtime.epochdoubleFluxNormalised aperture flux (in ppt)phot.flux;arith.ratiodoublee_Flux[] Flux standard deviation (in ppt)stat.error;phot.fluxdoubleAirmassAirmass of starobs.airMassdoubleFluxcmedBest-fit flux correction model from linear decorrelation of meta data (median)phot.flux;meta.modelleddoubleFluxcsdError on best-fit flux correction model from linear decorrelation of meta data (standard deviation)stat.errordoubleplxmedBest-fit planetary transit model (median)stat.param;meta.modelledfloatplxsdError on best-fit planetary transit model (standard deviation)stat.errorfloat