J/A+A/469/L43ivo://CDS.VizieR/J/A+A/469/L43doi:10.26093/cds/vizier.34699043CDSUdry S.Bonfils X.Delfosse X.Forveille T.Mayor M.Perrier C.,Bouchy F.Lovis C.Pepe F.Queloz D.Bertaux J.-L.2017-06-19T07:57:52Z2008-09-21T11:40:15ZCDS support team

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

cds-question@unistra.frsolar-system-planetsradial-velocityThis Letter reports on the detection of two super-Earth planets in the Gl 581 system, which is already known to harbour a hot Neptune. One of the planets has a mass of 5M_{earth}_ and resides at the "warm" edge of the habitable zone of the star. It is thus the known exoplanet that most resembles our own Earth. The other planet has a 7.7M_{earth}_ mass and orbits at 0.25AU from the star, close to the "cold" edge of the habitable zone. These two new light planets around an M3 dwarf further confirm the formerly tentative statistical trend toward (i) many more very low-mass planets being found around M dwarfs than around solar-type stars and (ii) low-mass planets outnumbering Jovian planets around M dwarfs.2007A&A...469L..43Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/469/L43CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/474/293 : Radial velocities of GJ 674 (Bonfils+, 2007)J/A+A/493/639 : Velocity curves of HD 40307 (Mayor+, 2009)J/A+A/493/645 : Gl 176 radial velocities (Forveille+, 2009)J/A+A/496/513 : RV of 6 stars with long-period giant planets (Moutou+, 2009)J/A+A/496/521 : Radial velocities of HD45364 (Correia+, 2009)J/A+A/496/527 : Radial velocity curves of HD 47186 & HD 181433 (Bouchy+, 2009)J/A+A/507/487 : GJ 581 radial velocity curve (Mayor+, 2009)J/A+A/512/A46 : Radial velocities of BD-08 2823 (Hebrard+, 2010)J/A+A/512/A47 : Radial velocities of 3 stars with giant planets (Santos+ 2010)J/A+A/512/A48 : HD125612, HD215497, HIP5158 HARPS RV curves (Lo Curto+, 2010)J/A+A/523/A15 : RV data for the 8 targets (Naef+, 2010)J/A+A/526/A141 : HIP 85647 & Gl 676A radial velocities (Forveille+, 2011)J/A+A/526/A111 : HD 85390, 90156 and 103197 radial velocity (Mordasini+, 2011)J/A+A/526/A112 : Radial velocities of HARPS metail-poor sample (Santos+ 2011)J/A+A/527/A63 : 7 new HARPS planetary systems radial velocities (Moutou+ 2011)J/A+A/528/A112 : Radial velocities of HD 10180 (Lovis+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/469/L43https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/469/L43http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/469/L43https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/469/L43https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/469/L43http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/469/L43GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/469/L43/gl581Radial velocity measuredrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian datedtime.epochdoubleRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloat