J/A+A/507/487ivo://CDS.VizieR/J/A+A/507/487doi:10.26093/cds/vizier.35070487CDSMayor M.Bonfils X.Forveille T.Delfosse X.Udry S.Bertaux J.-L.,Beust H.Bouchy F.Lovis C.Pepe F.Perrier C.Queloz D.Santos N.C.2017-06-27T06:38:50Z2010-01-01T00:12:16ZCDS support team

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

cds-question@unistra.frlate-type-starssolar-system-planetsradial-velocityThe GJ 581 planetary system is already known to harbour three planets, including two super-Earth planets that straddle its habitable zone. We report the detection of an additional planet - GJ 581e - with a minimum mass of 1.9M_{earth}_. With a period of 3.15 days, it is the innermost planet of the system and has a ~5% transit probability. We also correct our previous confusion about the orbital period of GJ 581d (the outermost planet) with a one-year alias, benefitting from an extended time span and many more measurements. The revised period is 66.8 days, and positions the semi-major axis inside the habitable zone of the low mass star. The dynamical stability of the 4-planet system imposes an upper bound on the orbital plane inclination. The planets cannot be more massive than approximately 1.6 times their minimum mass.2009A&A...507..487Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/507/487CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/469/L43 : Radial velocities of Gl 581 (Udry+, 2007)J/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/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/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/526/A141 : HIP 85647 & Gl 676A radial velocities (Forveille+, 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/507/487https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/507/487http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/507/487https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/507/487https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/507/487http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/507/487GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/507/487/table1Radial velocity and Ca II H+K for GJ 581recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVBarycentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublee_RVFull RV uncertaintykm/sstat.errorfloatCaIICa II H+K indexspect.indexfloat