J/AJ/164/156ivo://CDS.VizieR/J/AJ/164/156doi:10.26093/cds/vizier.51640156CDSTrifonov T.Wollbold A.Kurster M.Eberhardt J.Stock S.Henning T.,Reffert S.Butler R.P.Vogt S.S.Reiners A.Lee M.H.Bitsch B.,Zechmeister M.Rodler F.Perdelwitz V.Tal-Or L.Rybizki J.Heeren P.,Gandolfi D.Barragan O.Zakhozhay O.Sarkis P.Pinto M.T.,Kossakowski D.Wolthoff V.Brems S.S.Passegger V.M.2023-01-16T08:47:48Z2022-12-07T08:12:53ZCDS support team

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

cds-question@unistra.frexoplanetsgiant-starsvisible-astronomyspectroscopyradial-velocityBased on recently-taken and archival HARPS, FEROS, and HIRES radial velocities (RVs), we present evidence for a new planet orbiting the first ascent red giant star HD33142 (with an improved mass estimate of M1.52{+/-}0.03M{sun}), already known to host two planets. We confirm the Jovian-mass planets HD33142b and c, with periods of Pb=330.0_-0.4_^+0.4^days and Pc=810.2_-4.2_^+3.8^days and minimum dynamical masses of m_b_sini=1.26_-0.05_^+0.05^MJup and m_c_sini=0.89_-0.05_^+0.06^MJup, respectively. Furthermore, our periodogram analysis of the precise RVs shows strong evidence for a short-period Doppler signal in the residuals of a two-planet Keplerian fit, which we interpret as a third, Saturn-mass planet with m_d_sini=0.20_-0.03_^+0.02^MJup in a close-in orbit with an orbital period of Pd=89.9_-0.1_^+0.1^days. We study the dynamical behavior of the three-planet system configuration with an N-body integration scheme, finding it to be long-term stable with the planets alternating between low and moderate eccentricity episodes. We also perform N-body simulations, including stellar evolution and second-order dynamical effects such as planet-stellar tides and stellar mass loss on the way to the white dwarf phase. We find that planets HD33142b, c, and d are likely to be engulfed near the tip of the red giant branch phase due to tidal migration. These results make the HD33142 system an essential benchmark for planet population statistics of the multiple-planet systems found around evolved stars.2022AJ....164..156Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/156CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/ApJ/709/168 : Eccentric orbits in exoplanets (Anglada-Escude+, 2010)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/A+A/574/A50 : Chemical abundances of giants and subgiants (Jofre+, 2015)J/A+A/580/A14 : Radial Velocities of 3 giant stars with planets (Jones+, 2015)J/ApJ/821/89 : 12yrs radial velocity obs. of exoplanet systems (Bryan+, 2016)J/AJ/153/208 : LCES HIRES/Keck radial veloc Exoplanet Survey (Butler+, 2017)J/MNRAS/480/2846 : 95 RV-discovered single-planet systems (Boisvert+, 2018)J/ApJ/860/109 : Keck HIRES obs. 245 subgiants (retired Astars) (Ghezzi+, 2018)J/A+A/616/A33 : Stellar parameters of 372 giant stars (Stock+, 2018)J/AJ/157/149 : Transit parameters for planets around subgiants (Luhn+, 2019)J/A+A/628/A39 : Radial velocities of GJ 357 (Luque+, 2019)J/A+A/627/A49 : Teegarden's Star RV and H{alpha} curves (Zechmeister+, 2019)J/MNRAS/496/5423 : 4 planet-hosting stars asteroseismic masses (Malla+, 2020)J/A+A/652/A116 : CARMENES time-resolved CaII H&K catalog (Perdelwitz+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/156https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/156http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/156https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/164/156https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/164/156http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/164/156GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/164/156/tablea1Radial velocity and activity indices of HD 33142 obtained from FEROSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2455879/2458815] Barycentric Julian Datedtime.epochdoubleRVel[33582/37212] FEROS Radial Velocitym/sphys.veloc;pos.heliocentricdoublee_RVel[3/41] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatHa[0.83/0.89]? Activity indicator, H{alpha}instr.setup;spect.linefloatnullablee_Ha[0/0.005]? Uncertainty in Hastat.errorfloatnullableNaID1[0.72/0.76]? Activity indicator, NaI D1 linespect.line.widthfloatnullablee_NaID1[0/0.008]? Uncertainty in NaID1stat.errorfloatnullableNaID2[0.79/0.82]? Activity indicator, NaI D2 linespect.line.widthfloatnullablee_NaID2[0.001/0.008]? Uncertainty in NaID2stat.errorfloatnullableCaIIH[0.03/0.14]? Activity indicator, CaII H linespect.line.widthfloatnullablee_CaIIH[0.00/0.05]? Uncertainty in CaIIHstat.errorfloatnullableCaIIK[0.00/0.19]? Activity indicator, CaII K linespect.line.widthfloatnullablee_CaIIK[0.00/0.09]? Uncertainty in CaIIKstat.errorfloatnullableJ/AJ/164/156/tablea2Radial velocity and activity indices of HD 33142 obtained from HARPSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2457609/2458755] Barycentric Julian Datedtime.epochdoubleRVel[-70.8/2.85] HIRES Radial Velocitym/sphys.veloc;pos.heliocentricfloate_RVel[0.3/2] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatHa[0.45/0.47] Activity indicator, H{alpha}instr.setup;spect.linedoublee_Ha[0/0.002] Uncertainty in Hastat.errordoubleNaID1[0.23/0.26] Activity indicator, NaI D1 linespect.line.widthdoublee_NaID1[0/0.002] Uncertainty in NaID1stat.errordoubleNaID2[0.32/0.35] Activity indicator, NaI D2 linespect.line.widthdoublee_NaID2[0/0.003] Uncertainty in NaID2stat.errordoubleCRX[-20.6/24.4] Chromatic indexm/smeta.code.multipfloate_CRX[5/14] Uncertainty in CRXm/sstat.errorfloatdLW[-9.29/10.2] differential line widthm**2.s**-2spect.line.widthfloate_dLW[0.7/3] Uncertainty in dLWm**2.s**-2stat.errorfloatBIS[0.04/0.06] Bisector inverse slopekm/sstat.fit.residualfloate_BIS[0.001] Uncertainty in BISkm/sstat.errorfloatFWHM[6.69/6.71] Full-width, half-maximum ofkm/sspect.line.widthfloate_FWHM[0.001] Uncertainty in FWHMkm/sstat.error;phys.angSizefloatCont[6.63/46.8] Contrast of the cross-correlation functionmeta.codefloate_Cont[0.01] Uncertainty in Contstat.errorfloatJ/AJ/164/156/tablea3Radial velocity and activity indices of HD 33142 obtained from HIRESrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2454400/2458908] Barycentric Julian Datedtime.epochdoubleRVel[-57.5/33.5] HIRES Radial Velocitym/sphys.veloc;pos.heliocentricfloate_RVel[1/4] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatS-index[-1/0.14] HIRES S indexmeta.code.multipfloatH-index[-1/0.04] HIRES H indexmeta.code.multipdouble