J/AJ/168/115ivo://CDS.VizieR/J/AJ/168/115doi:10.26093/cds/vizier.51680115CDSBashi D.Mazeh T.Faigler S.2025-05-21T20:12:35Z2025-02-06T14:46:32ZCDS support team

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

cds-question@unistra.frexoplanetstwo-color-diagramsabsolute-magnitudevisible-astronomyWe used the database of 1040 short-period (1<=P<200days) exoplanets radial-velocity orbits to study the planetary eccentricity-period (PEP) distribution. We first divided the sample into low- and high-mass exoplanet subsamples based on the distribution of the (minimum) planetary masses, which displays a clear two-Gaussian distribution, separated at 0.165M_J_. We then selected 216 orbits, low- and high-mass alike, with eccentricities significantly distinct from circular orbits. The 131 giant-planet eccentric orbits display a clear upper envelope, which we model quantitatively, rises monotonically from zero eccentricity and reaches an eccentricity of 0.8 at P~100 days. Conversely, the 85 low-mass planetary orbits display a flat eccentricity distribution between 0.1 and 0.5, with almost no dependence on the orbital period. We show that the striking difference between the two PEP distributions is not a result of the detection technique used. The upper envelope of the high-mass planets, also seen in short-period binary stars, is a clear signature of tidal circularization, which probably took place inside the planets, while the small-planet PEP distribution suggests that the circularization was not effective, probably due to dynamical interactions with neighboring planets.2024AJ....168..115Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/168/115CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/375/L27 : HD 80606b extremely elongated orbit (Naef+ 2001)J/ApJ/742/116 : Phot. of four massive transiting exoplanets (Bakos+, 2011)J/ApJS/197/8 : Kepler's cand. multiple transiting planets (Lissauer+, 2011)J/MNRAS/414/1278 : Eccentricities of transiting planets (Pont+, 2011)J/ApJ/824/15 : Orbital circularization of Kepler EBs (Van Eylen+, 2016)J/A+A/602/A107 : 231 transiting planets eccentricity and mass (Bonomo+, 2017)J/A+A/630/A135 : Beyond the exoplanet mass-radius relation (Ulmer-Moll+, 2019)J/AJ/157/82 : TEMP. V. Phot. of HAT-P-9, HAT-P-32 & HAT-P-36 (Wang+, 2019)J/ApJ/888/L5 : Transits, occultation times and RVs of WASP-12b (Yee+, 2020)J/A+A/649/A6 : Gaia Catalog of Nearby Stars - GCNS (Gaia collaboration, 2021)J/AJ/163/227 : HIRES RVel follow up for Kepler-1656 (Angelo+, 2022)J/ApJS/262/21 : 3-D selection of 167 sub-stellar companions (Feng+, 2022)J/AJ/165/125 : Planetary Orbit Eccentricity Trends (POET). I. (An+, 2023)J/A+A/670/A68 : Architecture of exoplanetary systems (Mishra+, 2023)http://exoplanetarchive.ipac.caltech.edu/ : NASA Exoplanet archive homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/168/115https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/168/115http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/168/115https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/168/115https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/168/115http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/168/115GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/168/115/table1 (Small planets (Mp<0.165Mup) properties used in the analysis of the PEP distributions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/168/115/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/168/115/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/168/115/table1?GETtext/xml+votable180.050000true50.8237547-7.79409860.005555555555555556Cone search capability for table J/AJ/168/115/table2 (Giant planets (Mp>=0.165Mup) properties used in the analysis of the PEP distributions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/168/115/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/168/115/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/168/115/table2?GETtext/xml+votable180.050000true97.636652529.67229560.0055555555555555566/320 431 1066 1275 2043 2152 2472 2515 2711 3732 3876 4136 4280 4298 4659 5207 5475 6181 6638 6821 7083 7208 7240 7471 7746 7898 9403 9483 9651 10004 10079 10953 11035 11057 11087 11589 11908 12024 12814 12853 12899 13143 13569 14089 14419 14434 14525 14573 14782 14825 14920 14932-14933 14945 15109 15121 15141 15145 15149 15154 15158 15956 15973 16258 16316 16432 16627 16947 17730 17847 17888 18821 19912 20072 20186 21003 21206 21473 22036 22169 22208 22216 22252 22779 22878 23646 23681 24205 24409 24752 24924 25132 25140 25283 25424 25593 25723 26019 26242 26575 26990 26992 27056 27088 27164 27358 27759 28485 28571 29374 29520 29541 30295 30450 31494 31641 32564 32848 32918 32930 32978 32986 33210 33243 33386 33449 33507 33510 33598 33705 33723 33814 34268 34396 34481 34890 35121 35442 35928 35938 35968 36078 36086 36196 36312 36723 37263 37393 37547 37751 37947 37955 38238 38263 38728 38742 38807 38975 38982 39280 39549 39912 40661 40692 41432 41724 41752 42044 42101 42333 42519 42700 42808 42934 42986 43228 43625 44335 44650 45107 45165 45172 45717 45888 46421 46557 46625 46967 47435 48114 48327 48402 48652 48727https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/168/115?format=asciiOpticaldefaultJ/AJ/168/115/table1Small planets (Mp<0.165Mup) properties used in the analysis of the PEP distributionsNamePlanet namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPer[2.38/142.23] Period (1)dtime.perioddoublee[0.015/0.93] Eccentricity (1)src.orbital.eccentricitydoublee_e[0.00012/0.22] Uncertainty in e (1)stat.error;src.orbital.eccentricitydoubleMp[0.0065/0.17] Planet mass (1)(1.898187x10+27kg)phys.massdoubleNp[1/6] Number of other planets in system (1)meta.numberintMethodDiscovery method (1)meta.code;obscharBP-RP[0.71/1.99] Gaia BP-RP colormagphot.color;em.opt.B;em.opt.RfloatGMag[3/8.25] Absolute Gaia G-band magnitudemagphys.magAbs;em.optfloat_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.mainSimbadNameSimbad column added by the CDSmeta.idcharnullableJ/AJ/168/115/table2Giant planets (Mp>=0.165Mup) properties used in the analysis of the PEP distributionsBP-RP[0.7/1.86] Gaia BP-RP colormagphot.color;em.opt.B;em.opt.RfloatGMag[2.6/7.9] Absolute Gaia G-band magnitudemagphys.magAbs;em.optfloat_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.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePlanet namemeta.id;meta.maincharPer[1/194.3] Period (1)dtime.perioddoublee[0.01/0.93] Eccentricity (1)src.orbital.eccentricitydoublee_eUncertainty in e (1)stat.error;src.orbital.eccentricitycharMp[0.17/9.84] Planet mass (1)(1.898187x10+27kg)phys.massdoubleNp[1/4] Number of other planets in system (1)meta.numberintMethodDiscovery method (1)meta.code;obscharSimbadNameSimbad column added by the CDSmeta.idcharnullable