J/MNRAS/480/2846ivo://CDS.VizieR/J/MNRAS/480/2846doi:10.26093/cds/vizier.74802846CDSBoisvert J.H.Nelson B.E.Steffen J.H.2024-08-18T20:21:13Z2022-07-07T13:12:29ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsradial-velocityorbitsvisible-astronomyThere is a degeneracy in the radial velocity exoplanet signal between a single planet on an eccentric orbit and a two-planet system with a period ratio of 2:1. This degeneracy could lead to misunderstandings of the dynamical histories of planetary systems as well as measurements of planetary abundances if the correct architecture is not established. We constrain the rate of mischaracterization by analysing a sample of 60 non-transiting, radial velocity systems orbiting main-sequence stars from the NASA Exoplanet Archive (NASA Archive) using a new Bayesian model comparison pipeline. We find that 15 systems (25 per cent of our sample) show compelling evidence for the two-planet case with a confidence level of 95 per cent.2018MNRAS.480.2846Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/480/2846CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/480/2846https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/480/2846http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/480/2846https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/480/2846https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/480/2846http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/480/2846GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/480/2846/table (Model parameters with errors for all four models)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/480/2846/table?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/480/2846/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/480/2846/table?GETtext/xml+votable180.050000true348.925934458.04324250.0055555555555555566/341 737 1544 2577 2971 3536 4104 4285 4444 4699 4881 5067 5488 5556 5815 7402 8671 9061 9893 11087 11352 11589 12056 12186 12482 12502 12655 13643 14275 14284 14317 16035 16627 16823 17731 17764 17954 18172 18441 18747 18953 19619 21003 21906 23414 26242 26707 26901 26978 27060 27164 28865 30278 30378 30419 30541 30707 30770 31860 32491 32930 33243 33258 35907 36078 37955 38728 38744 39646 39675 40066 40400 41167 41211 41446 41724 42290 42333 42386 42510 42760 42934 43022 43677 43818 44379 44398 45168 45624 46111 46843 46967 47550 47590 48108https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/480/2846?format=asciiOpticaldefaultJ/MNRAS/480/2846/tableModel parameters with errors for all four modelsSimbadNameSimbad column added by the CDSmeta.idcharnullableNameStar Namemeta.id;meta.mainchare_eSingle Eccentric: Eccentricity errorstat.errorfloateSingle Eccentric: Eccentricitysrc.orbital.eccentricityfloatomegaSingle Eccentric: Longitude of Periastronradsrc.orbital.periastronfloate_omegaSingle Eccentric: Longitude of Periastron errorradstat.errorfloatMSingle Eccentric: Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomaly;obsfloate_MSingle Eccentric: Mean Anomaly of Earliest Observation errorradstat.errorfloatASingle Eccentric: linear trend Am.s**-1.d**-1src.orbitalfloate_ASingle Eccentric: A errorm.s**-1.d**-1stat.errorfloatCSingle Eccentric: velocity offset Cm/sphys.veloc;arith.diffdoublee_CSingle Eccentric: C errorm/sstat.errorfloatFactoraBayes factor between the 2:1 fixed circular double model and the single eccentric model (1)stat.fit.goodnessdoublePerOuta2:1 Fixed Circular Double: Outer Perioddmeta.code.multip;time.perioddoublee_PerOuta2:1 Fixed Circular Double: Outer Period errordstat.errorfloatKOuta2:1 Fixed Circular Double: Outer Velocity Semi-Amplitudem/sphys.veloc;src.orbitaldoublee_KOuta2:1 Fixed Circular Double: Outer Velocity Semi-Amplitude errorm/sstat.errorfloatMOuta2:1 Fixed Circular Double: Outer Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MOuta2:1 Fixed Circular Double: Outer Mean Anomaly of Earliest Observation errorradstat.errorfloatKIna2:1 Fixed Circular Double: Inner Velocity Semi-Amplitudem/sphys.veloc;src.orbitalfloate_KIna2:1 Fixed Circular Double: Inner Velocity Semi-Amplitude errorm/sstat.errorfloatMIna2:1 Fixed Circular Double: Inner Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MIna2:1 Fixed Circular Double: Inner Mean Anomaly of Earliest Observation errorradstat.errorfloatAa2:1 Fixed Circular Double: linear trend Am.s**-1.d**-1src.orbitalfloate_Aa2:1 Fixed Circular Double: A errorm.s**-1.d**-1stat.errorfloatCa2:1 Fixed Circular Double: velocity offset Cm/sphys.veloc;arith.diffdoublee_Ca2:1 Fixed Circular Double: C errorm/sstat.errorfloatFactorbBayes factor between the 2.17:1 fixed circular double model and the single eccentric model (1)stat.fit.goodnessdoublePerOutb2.17:1 Fixed Circular Double: Outer Perioddmeta.code.multip;time.perioddoublee_PerOutb2.17:1 Fixed Circular Double: Outer Period errordstat.errordoubleKOutb2.17:1 Fixed Circular Double: Outer Velocity Semi-Amplitudem/sphys.veloc;src.orbitaldoublee_KOutb2.17:1 Fixed Circular Double: Outer Velocity Semi-Amplitude errorm/sstat.errorfloatMOutb2.17:1 Fixed Circular Double: Outer Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MOutb2.17:1 Fixed Circular Double: Outer Mean Anomaly of Earliest Observation errorradstat.errorfloatKInb2.17:1 Fixed Circular Double: Inner Velocity Semi-Amplitudem/sphys.veloc;src.orbitalfloate_KInb2.17:1 Fixed Circular Double: Inner Velocity Semi-Amplitude errorm/sstat.errorfloatMInb2.17:1 Fixed Circular Double: Inner Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MInb2.17:1 Fixed Circular Double: Inner Mean Anomaly of Earliest Observation errorradstat.errorfloatAb2.17:1 Fixed Circular Double: linear trend Am.s**-1.d**-1src.orbitalfloate_Ab2.17:1 Fixed Circular Double: A errorm.s**-1.d**-1stat.errorfloatCb2.17:1 Fixed Circular Double: velocity offset Cm/sphys.veloc;arith.diffdoublee_Cb2.17:1 Fixed Circular Double: C errorm/sstat.errorfloate_CcFloating Circular Double: C errorm/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Name[0/1] 0: Main Sequence 1: Non-Main Sequencemeta.noteintPerSingle Eccentric: Perioddtime.perioddoublee_PerSingle Eccentric: Period errordstat.errorfloatKSingle Eccentric: Velocity Semi-Amplitudem/sphys.veloc;src.orbitaldoublee_KSingle Eccentric: Velocity Semi-Amplitude errorm/sstat.errorfloatFactorcBayes factor between the floating circular double model and the single eccentric model (1)stat.fit.goodnessdoublePerOutcFloating Circular Double: Outer Perioddmeta.code.multip;time.perioddoublee_PerOutcFloating Circular Double: Outer Period errordstat.errordoubleKOutcFloating Circular Double: Outer Velocity Semi-Amplitudem/sphys.veloc;src.orbitaldoublee_KOutcFloating Circular Double: Outer Velocity Semi-Amplitude errorm/sstat.errorfloatMOutcFloating Circular Double: Outer Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MOutcFloating Circular Double: Outer Mean Anomaly of Earliest Observation errorradstat.errorfloatPerIncFloating Circular Double: Inner Perioddmeta.code.multip;time.perioddoublee_PerIncFloating Circular Double: Inner Period errordstat.errordoubleKIncFloating Circular Double: Inner Velocity Semi-Amplitudem/sphys.veloc;src.orbitalfloate_KIncFloating Circular Double: Inner Velocity Semi-Amplitude errorm/sstat.errorfloatMIncFloating Circular Double: Inner Mean Anomaly of Earliest Observationradsrc.orbital.meanAnomalyfloate_MIncFloating Circular Double: Inner Mean Anomaly of Earliest Observation errorradstat.errorfloatAcFloating Circular Double: linear trend Am.s**-1.d**-1src.orbitalfloate_AcFloating Circular Double: A errorm.s**-1.d**-1stat.errorfloatCcFloating Circular Double: velocity offset Cm/sphys.veloc;arith.diffdoubleModel[0/1] Preferred Fixed Circular Double Model (0=2:1 and 1=2.17:1)meta.code.multip;stat.param;meta.modelledintBinCorresponding Percentile Bin (2)spect.binSize;em.binint_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main