J/AJ/170/177ivo://CDS.VizieR/J/AJ/170/177CDSWanderley F.Cunha K.Souto D.Smith V.V.Daflon S.2026-10-10T20:30:32Z2026-07-08T12:19:57ZCDS support team

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

cds-question@unistra.frexoplanetsdwarf-starsm-starsstellar-radiiinfrared-astronomyspectroscopyphotometryvisible-astronomychemical-abundancesOne important property in studying the exoplanet population is the host star metallicity ([M/H]). In this study, we derived stellar metallicities and oxygen abundances for 48 M dwarf stars using the near-infrared high-resolution spectra from the SDSS APOGEE survey and synthetic spectra computed in LTE. We also investigated the exoplanetary radii distribution for a larger sample of 246 exoplanets orbiting 188 M dwarf stars. The [M/H] versus [O/M] distribution obtained indicates that our sample is composed mainly of thin disk stars, which follow the behavior of the low-alpha sequence in the Milky Way thin disk. Small planets with radii smaller than 3R_{Earth}_ were found around stars with a range of metallicities (-0.6<[M/H]<+0.3), while larger planets of the sample orbit only stars with [M/H]>=0.0. These results indicate that while small planets can form in different environments, larger planets preferentially form in metal-rich protoplanetary disks. Exoplanets with P_orb_<4.3days orbit on average more metal-rich stars than planets with longer periods. This threshold is smaller than that found for FGK stars (8-10days) and might be related to M dwarfs having a smaller dust sublimation radius. The distribution of exoplanets with R_p_>4R_{Earth}_ shows a concentration at orbital periods between 2 and 5days, which may result from inward orbital migration. There is also a different behavior between single-detected exoplanets and planets from multiplanetary systems, with the latter being found on average around more metal-poor stars, and with planetary radii roughly up to 3R_{Earth}_.2025AJ....170..177Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/177CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)II/306 : The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011)III/284 : APOGEE-2 data from DR16 (Johnsson+, 2020)V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/MNRAS/349/757 : Masses, ages & metallicities of F-G dwarfs (Lambert+, 2004)J/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/A+A/465/271 : Oxygen abundances in nearby stars (Ramirez+, 2007)J/A+A/489/923 : Abundances of stars in lower main sequence (Mishenina+, 2008)J/A+A/487/373 : Spectroscopic parameters of 451 HARPS-GTO stars (Sousa+, 2008)J/ApJ/720/1290 : Abundances of stars hosting planets (Ghezzi+, 2010)J/A+A/545/A32 : Chemical abundances of 1111 FGK stars (Adibekyan+, 2012)J/other/Nat/486.375 : Stellar parameters of KOI stars (Buchhave+, 2012)J/A+A/542/A33 : 3 M dwarfs near-infrared spectra (Onehag+, 2012)J/ApJ/756/46 : Lithium abundances in HIP stars (Ramirez+, 2012)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/ApJ/748/93 : K-band spectra for 133 nearby M dwarfs (Rojas-Ayala+, 2012)J/AJ/145/52 : Abundances of late K & M dwarfs in binary systems (Mann+, 2013)J/ApJ/770/43 : Spectroscopic [Fe/H] of Kepler stars (Mann+, 2013)J/A+A/551/A36 : Metallicity of M dwarfs. III. (Neves+, 2013)J/A+A/562/A71 : Chem. abundances of solar neighbourhood dwarfs (Bensby+, 2014)J/ApJ/791/54 : Nearby M Dwarfs parameters (Gaidos+, 2014)J/ApJS/213/5 : Cool KOIs. VI. H- and K- band spectra (Muirhead+, 2014)J/AJ/147/20 : Spectroscopy of 447 nearby M dwarfs (Newton+, 2014)J/A+A/577/A132 : Stellar parameters of early M dwarfs (Maldonado+, 2015)J/ApJS/220/16 : SpeX NIR survey of 886 nearby M dwarfs (Terrien+, 2015)J/AJ/151/144 : ASPCAP weights for the 15 APOGEE chem. elements (Garcia+, 2016)J/AJ/152/187 : Planet occurrence & stellar metal. for KOIs (Mulders+, 2016)J/AJ/154/109 : California-Kepler Surv (CKS). III. Planet radii (Fulton+, 2017)J/A+A/614/A76 : CARMENES input catalogue of M dwarfs. III. (Jeffers+, 2018)J/AJ/155/225 : M dwarf stars rotat. broadening measurements (Kesseli+, 2018)J/AJ/155/89 : California-Kepler Survey (CKS). IV. Planets (Petigura+, 2018)J/A+A/620/A180 : Stellar properties of M dwarfs (Rajpurohit+, 2018)J/AJ/156/254 : Cal-Kepler Surv.VI. Kepler multis & singles (Weiss+, 2018)J/AJ/155/68 : Elemental abundances of KOIs in APOGEE. I. (Wilson+, 2018)J/AJ/158/87 : 86 cool dwarfs observed during K2 Camp. 1-17 (Dressing+, 2019)J/MNRAS/483/1125 : Rad. inflation in Praesepe active M-dwarfs (Jackson+, 2019)J/ApJ/875/29 : Spectroscopic analysis of the CKS sample. I. (Martinez+, 2019)J/ApJ/892/31 : Teff & metallicities of M dwarfs in APOGEE DR14 (Birky+, 2020)J/ApJ/920/19 : Spectr. analysis of CKS. II. Metallicities (Ghezzi+, 2021)J/A+A/656/A162 : CARMENES stellar atmospheric parameters (Marfil+, 2021)J/A+A/649/A147 : Spectroscopic parameters for 313 M dwarfs (Sarmento+, 2021)J/ApJ/917/11 : Metal. of Coma Berenices bona fide members (Souto+, 2021)J/other/Sci/377.1211 : RV and LC of 8 M dwarf stars with planets (Luque+, 2022)J/A+A/658/A194 : Stellar parameters of 18 M dwarfs (Passegger+, 2022)J/A+A/673/A105 : Deep Transfer Learning of Teff and [M/H] (Bello-Garcia+, 2023)J/ApJ/993/233 : Stellar & planetary param. of M-dwarf systems (Wanderley+ 2025)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/177https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/177http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/177https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/177https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/177http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/177GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/170/177/table1 (Stellar and planetary data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/170/177/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/170/177/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/170/177/table1?GETtext/xml+votable180.050000true130.410372217.64002360.0055555555555555566/285 372 404 449 728 1032 1052 1064 1271 1585 1793 1920 3035 3801 3900 4247 4272 4314 4651 4679 4687 4698 4716 4720 4867-4868 4873-4875 5212 5354 5657 7418 9029 9373 9750 10066 10149 11089 11238 11739 11923 12195 12845 13082 13092 13900 14579 14588 14591 14709 14764 14768 14770 14772 14781 14794 14818-14819 14825 14896 14915 14921 14930 14935 14937 14939 14945 14948 14953 14963 14972 14974-14975 15057 15108 15111-15112 15132 15134 15137 15142 15146-15147 15151 15158 15171-15172 15558 15629 16014 16094 16117 16132 16581 16722 17253 17331 17750 18013 18171 18220 18328-18329 18335 18532 18580 18585 18632 19668 20476 21079 21297 21986 22661 23531 23826 23867 24227 24340 24527 24587 24999 25373 25548 26114 26148 26256 26296 26538 26768 26920 26928 26940 26969 26977 27078 27411 27422 27443 27456 27847 28279 28379 28548 32730 32833 33148 33470 33898 33972 34260 34468 34561 35057 35534 36116 37309 37453 37548 38067 38345 38376 38456 38957 39080 40250 40554 40754 40772 43393 43862 44333 44449 44463 44468 45102 45161 45553 45964 46128 48068 48098https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/170/177?format=asciiOpticalInfrareddefaultJ/AJ/170/177/table1Stellar and planetary datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostHostname identifiermeta.id.parentcharDist[6.48/380.73] Stellar distance from Bailer-Jones+2021 (I/352) (d)pcpos.distancefloate_Dist[0/4.42] Uncertainty in Distpcstat.error;pos.distancefloatTeff[3260/3988]? Effective temperature (1)Kphys.temperature.effectivefloatnullablelogg[4.62/5.13]? Log of surface gravity (1)phys.gravityfloatnullablePlanetExoplanet identifiermeta.id;meta.maincharSimbadNameSimbad column added by the CDSmeta.idcharnullable[M/H][-0.56/0.26]? Stellar metallicity (1)phys.abund.Zfloatnullablevsini[1/9.27]? Stellar projected rotational velocitykm/sphys.veloc.rotatfloatnullableA(O)[8.25/8.87]? Oxygen abundancephys.abundfloatnullableKsMag[4.98/7.51] Absolute Ks magnitude (2MASS, II/246)magphys.magAbs;em.IR.KfloatR*[0.24/0.59] Stellar radiussolRadphys.size.radiusfloate_R*[0.01/0.03] Uncertainty in R*solRadstat.error;phys.size.radiusfloatDepth[0.01/11.02]? Transit depth (dF)%phys.absorption.opticalDepthfloatnullableE_Depth[0/0.16]? Superior uncertainty in Depth%stat.error;stat.max;phys.absorption.opticalDepthfloatnullablee_Depth[0/0.16]? Inferior uncertainty in Depth%stat.error;stat.min;phys.absorption.opticalDepthfloatnullableRp[0.57/12.61]? Planetary radius(6.3781x10+6m)phys.size.radiusfloatnullableE_Rp[0.03/0.6]? Superior uncertainty in Rp(6.3781x10+6m)stat.error;stat.max;phys.size.radiusfloatnullablee_Rp[0.03/0.6]? Inferior uncertainty in Rp(6.3781x10+6m)stat.error;stat.min;phys.size.radiusfloatnullablePorb[0.24/207.25] Planetary orbital perioddtime.period;src.orbitalfloat_RAPlanet position from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPlanet position from Simbad (declination part)degpos.eq.dec;meta.main