J/AJ/170/103ivo://CDS.VizieR/J/AJ/170/103CDSTran Q.H.Bowler B.P.Cochran W.D.Bender C.F.Halverson S.,Mahadevan S.Ninan J.P.Robertson P.Roy A.Stefansson G.,Terrien R.C.2026-06-16T08:32:27Z2026-06-16T08:48:54ZCDS support team

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

cds-question@unistra.frexoplanetsradial-velocityinfrared-astronomyspectroscopyemission-line-starsWe present statistical results from the Epoch of Giant Planet Migration RV planet search program. This survey was designed to measure the occurrence rate of giant planets interior to the water ice line of young Sun-like stars, compare this to the prevalence of giant planets at older ages, and provide constraints on the timescale and dominant inward migration mechanism of giant planets. Our final sample amounts to 85 single young (20-200Myr) G and K dwarfs that we target across a 4yr time baseline with the near-infrared Habitable-zone Planet Finder spectrograph at McDonald Observatory's Hobby- Eberly Telescope. As part of this survey, we discovered the young hot Jupiter HS Psc b. We characterize survey detection completeness with realistic injection-recovery tests and measure an occurrence rate of 1.9_-1.4_^+2.6^% for intermediate-age giant planets (0.3M_J_<Msin(i)<13M_J_) within 2.5AU. This is lower than the field age occurrence rate for the same planet masses and separations and favors an increase in the prevalence of giant planets over time from ~100Myr to several Gyr, although our results cannot rule out a constant rate. A decaying planet occurrence rate is, however, strongly excluded. This suggests that giant planets located inside the water ice line originate from a combination of in situ formation or early migration coupled with longer-term inward scattering. The completeness-corrected prevalence of young hot Jupiters in our sample is 1.5_-1.1_^+2.2^% -similar to the rate for field stars-and the 95% upper limit for young brown dwarfs within 5000 days is <3.6% .2025AJ....170..103Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/103CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/131 : Tonantzintla Pleiades Flare Stars (Haro+ 1982)III/123B : Dwarf K and M stars of small proper motion (Stephenson 1986)I/146 : Positions and Proper Motions - North (Roeser+, 1988)III/150A : Perkins Revised MK Types for the Cooler Stars (Keenan+ 1989)III/182 : HDE Charts: positions, proper motions (Nesterov+ 1995)III/221A : Catalogue of [Fe/H] of F, G, K stars (Cayrel de Strobel+, 2001)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/352 : Dist. to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/ApJS/85/315 : F, G and K dwarf stars of the Pleiades (Soderblom+ 1993)J/MNRAS/328/45 : Late-type stars members of young groups (Montes+, 2001)J/AJ/126/2048 : NStars project: the Northern Sample. I. (Gray+, 2003)J/AJ/128/463 : A preliminary 20pc census from the NLTT cat. (Reid+, 2004)J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)J/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/AJ/132/161 : NStars project: The southern sample. I. (Gray+, 2006)J/A+A/460/695 : Search for Associations Containing Young stars (Torres+, 2006)J/ApJS/172/663 : Infrared observations of the Pleiades (Stauffer+, 2007)J/AJ/133/2524 : Spectra of young nearby stars (White+, 2007)J/AJ/139/1338 : UV-selected stars in Tau and Upper Sco (Findeisen+, 2010)J/AJ/140/119 : {beta}Pic and AB Dor moving groups members (Schlieder+, 2010)J/ApJ/757/18 : RVs for 16 hot Jupiter host stars (Albrecht+, 2012)J/other/Nat/486.375 : Stellar parameters of KOI stars (Buchhave+, 2012)J/ApJ/756/46 : Lithium abundances in HIP stars (Ramirez+, 2012)J/ApJ/762/88 : Young stellar kinematic group candidate members (Malo+, 2013)J/AJ/145/52 : Abundances of late K and M dwarfs in binary systems (Mann+, 2013)J/ApJ/788/81 : BANYAN III. RVel and rotation of low-mass stars (Malo+, 2014)J/MNRAS/454/593 : Young moving groups in solar neighbourhood (Bell+, 2015)J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/A+A/590/A13 : New candidate members in young associations (Elliott+, 2016)J/ApJ/822/40 : High resolution NIR RVs of K2-M4 low-mass stars (Gagne+, 2016)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/A+A/597/A52 : K and G dwarfs stellar granulation variability (Meunier+, 2017)J/ApJ/836/77 : A library of high-S/N optical spectra of FGKM stars (Yee+, 2017)J/A+A/614/A55 : Lithium abundance in dwarfs & subgiants (Aguilera-Gomez+, 2018)J/MNRAS/475/1609 : RV variability in NGC 2516 and NGC 2422 (Bailey+, 2018)J/MNRAS/473/2465 : New young stars in Pisces Moving Group (Binks+, 2018)J/ApJ/860/43 : BANYAN. XII. New members from Gaia-Tycho data (Gagne+, 2018)J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018)J/ApJ/877/60 : YMGs. I. Young binaries & lithium-rich stars (Bowler+, 2019)J/AJ/158/13 : The first 300 stars observed by the GPIES (Nielsen+, 2019)J/A+A/638/A5 : HD 285507 and AD Leo light and velocity curves (Carleo+, 2020)J/AJ/159/235 : Radial Velocity jitters in ~600 planet host stars (Luhn+, 2020)J/AJ/159/100 : Flux & RVs of the dwarf G9-40 with K2 & HPF (Stefansson+, 2020)J/AJ/160/192 : Photometry and RVs of K2-25b with HPF (Stefansson+, 2020)J/AJ/161/106 : Radial velocities of 12 Psc and HD 159062 (Bowler+, 2021)J/A+A/650/A39 : SOPHIE and HARPS Young Nearby Stars - YNS (Grandjean+ 2021)J/ApJS/256/33 : Magellan-TESS Survey (MTS). I. Midsurvey results (Teske+, 2021)J/ApJ/921/117 : 43yr spect. monitoring of the Pleiades region (Torres+, 2021)J/A+A/674/A110 : Gl 388 (AD Leo) RV curves (Carmona+, 2023)J/A+A/669/A12 : HARPS Sco-Cen + SOPHIE YNS and HARPS YNS (Grandjean+ 2023)J/ApJ/950/92 : Radial velocities and V-band phot. of DI Tau (Tang+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/103https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/103http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/103https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/103https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/103http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/103GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/170/103/targets (List of studied objects in this work (added by CDS))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/170/103/targets?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/170/103/targets?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/170/103/targets?GETtext/xml+votable180.050000true55.123315623.551110.0055555555555555565/115 6/75 102 251 334 336 354 378 457 466-467 472 474-475 485 496 504 508 784 899 1043 1096 1167 1762 2022 2101 2374 2622 2934 3210 6870 12417 12436 13674 14290 17607 18693 18745 18933 20020 20327 20397 21418 21424 21436 22067 22393 22619 22808 23028-23029 23130 23136 23276 23397 23520 23736 23738 23895 24110 24301 24314 25939 26379 29924 29993 30826 30951 367131.5062136169708525e-19 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/170/103?format=asciiInfrareddefaultJ/AJ/170/103/targetsList of studied objects in this work (added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectObject identifiermeta.id;meta.maincharprimaryStatusStatus of the object in this work (1)meta.codecharRVRadial velocity plotmeta.ref.urlchardLWRV and dLW correlation plotmeta.ref.urlcharCRXRV and CRX correlation plotmeta.ref.urlcharCaIIRV and CaII emission line correlation plotmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainJ/AJ/170/103/table5Properties of the EGPM Young StarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectObject identifiermeta.id;meta.maincharJmag[6.1/11.7] 2MASS (II/246) J-band magnitudemagphot.mag;em.IR.JfloatNepoch[5/38] Number of visits (composed of three continuous observations of each target)meta.numberintNspec[15/114] Number of individual observations (or RVs)meta.numberintdt[728/1900] Time baseline of observationsdinstr.baseline;obsfloatSNR[30/454] Signal-to-noise ratio estimated at 1.07umpixel**-1stat.snrintsigRV[7.3/829.6] Average radial velocity uncertaintym/sstat.error;spect.dopplerVeloc;stat.meanfloatrmsRV[8/846.5] Radial velocity rmsm/sstat.stdev;spect.dopplerVelocfloatf_rmsRV[*] Rms of RV residuals after subtracting the best-fit planetary model reported by Tran+ (2024AJ....167..193T)meta.codecharvsini[1.4/33] Projected rotational velocity measured in this workkm/sphys.veloc.rotatfloate_vsini[0.2/7.8] vsini uncertaintykm/sstat.error;phys.veloc.rotatfloatSpTypeSpectral typesrc.spTypecharr_SpType[1/39] Reference on SpType (1)meta.ref;src.spTypeintYMGYound moving group (2)meta.id.parentcharr_YMG[2/34] Reference on YMG (1)meta.ref;meta.id.parentintJ/AJ/170/103/table8Relative HPF RVs, activity indicators, and indices of the Ca II IRT lines for the 85 science targetsCaIRT1[0.4/1.7] First Calcium 2 infrared triplet emission line indexspect.indexfloate_CaIRT1[1e-3/331.7] Uncertainty in CaIRT1stat.error;spect.indexfloatObjectObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458425/2460381] Barycentric Julian Date in Barycentric Dynamical Time formatdtime.epochdoubleRVel[-1981/1563] Relative radial velocitym/sspect.dopplerVelocfloate_RVel[2.2/1697] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatdLW[-33165/10185] Differential line widthm**2.s**-2spect.line.width;arith.diffdoublee_dLW[5/13234] Uncertainty in dLWm**2.s**-2stat.error;spect.line.width;arith.difffloatCRX[-3.9/2.2] Chromatic index (1)spect.indexfloate_CRX[0/3.2] Uncertainty in CRX (1)stat.error;spect.indexfloatCaIRT2Second Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT2Uncertainty in CaIRT2stat.error;spect.indexcharCaIRT3Third Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT3Uncertainty in CaIRT3stat.error;spect.indexcharMainPre- or post-maintenance HPF Observing Window (2)meta.codecharJ/AJ/170/103/table9Relative HPF RVs, activity indicators, and indices of the Ca II IRT lines for the 3 RV standardsObjectObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458583/2460256] Barycentric Julian Date in Barycentric Dynamical Time formatdtime.epochdoubleRVel[-26/45.7] Relative radial velocitym/sspect.dopplerVelocfloate_RVel[2.9/18.8] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatdLW[-109/105.6] Differential line widthm**2.s**-2spect.line.width;arith.difffloate_dLW[3.4/34.4] Uncertainty in dLWm**2.s**-2stat.error;spect.line.width;arith.difffloatCRX[-0.04/0.05] Chromatic index (1)spect.indexfloate_CRX[0/0.02] Uncertainty in CRX (1)stat.error;spect.indexfloatCaIRT1[0.431/1.036] First Calcium 2 infrared triplet emission line indexspect.indexfloate_CaIRT1[1e-3/2e-3] Uncertainty in CaIRT1stat.error;spect.indexfloatCaIRT2Second Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT2Uncertainty in CaIRT2stat.error;spect.indexcharCaIRT3Third Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT3Uncertainty in CaIRT3stat.error;spect.indexcharMainPre- or post-maintenance HPF Observing Window (2)meta.codecharJ/AJ/170/103/table10Relative HPF RVs, activity indicators, and indices of the Ca II IRT lines for the 19 excluded systemsObjectObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458465/2460379] Barycentric Julian Date in Barycentric Dynamical Time formatdtime.epochdoubleRVel[-7043/8317] Relative radial velocitym/sspect.dopplerVelocfloate_RVel[3.8/4207.8] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatdLW[-22174/108202] Differential line widthm**2.s**-2spect.line.width;arith.diffdoublee_dLW[7.9/9671] Uncertainty in dLWm**2.s**-2stat.error;spect.line.width;arith.difffloatCRX[-3.8/2.4] Chromatic index (1)spect.indexfloate_CRX[0/10.1] Uncertainty in CRX (1)stat.error;spect.indexfloatCaIRT1[0.4/1.3] First Calcium 2 infrared triplet emission line indexspect.indexfloate_CaIRT1[1e-3/0.03] Uncertainty in CaIRT1stat.error;spect.indexfloatCaIRT2Second Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT2Uncertainty in CaIRT2stat.error;spect.indexcharCaIRT3Third Calcium 2 infrared triplet emission line indexspect.indexchare_CaIRT3Uncertainty in CaIRT3 ed triplet emission line index uncertaintystat.error;spect.indexcharMainPre- or post-maintenance HPF Observing Window (2)meta.codechar