J/A+A/693/A164ivo://CDS.VizieR/J/A+A/693/A164doi:10.26093/cds/vizier.36930164CDSCortes-Zuleta P.Boisse I.Ould-Elhkim M.Wilson T.G.Larue P.,Carmona A.Delfosse X.Donati J.-F.Forveille T.Moutou C.,Collier Cameron A.Artigau E.Acuna L.Altinier L.Astudillo-Defru N.,Baruteau C.Bonfils X.Cabrit S.Cadieux C.Cook N.J.Decocq E.,Diaz R.F.Fouque P.Gomes da Silva J.Grankin K.Grouffal S.Hara N.,Hebrard G.Heidari N.Martins J.H.C.Martioli E.Maurice M.,Scigliuto J.Serrano Bell J.Sulis S.Petit A.C.Vivien H.G.2025-03-03T20:01:16Z2025-01-14T08:34:49ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsspectroscopyradial-velocitym-starsWe report the discovery of a super-Earth candidate orbiting the nearby mid M dwarf Gl 725A using the radial velocity (RV) method. The planetary signal has been independently identified using high-precision RVs from the SOPHIE andSPIRou spectrographs, in the optical and NIR domains, respectively. We modelled the stellar activity signal jointly with the planet using two Gaussian Processes, one for each instrument to account for the chromaticity of the stellar activity and instrumental systematics, along with a Keplerian model. The signal is significantly detected with a RV semi-amplitude of 1.67+/-0.20m/s. The planet Gl 725A b is found to be in an orbit compatible with circular with a period of 11.2201+/-0.0051 days. We analysed 27 sectors of TESS photometry on which no transit event was found. We determined a minimum mass of M_p_sini=2.78+/-0.35M_{sun}_ which places the planet in the super-Earth regime. Using Mass-Radius relationships we predict a planetary radius to be between 1.2 and 2.0R_{sun}_. The proximity of Gl 725A, of only 3.5pc, makes this new exoplanet one of the closest to Earth and joins the group of S-type low-mass planets in short orbits (P<15d) around close M dwarfs.2025A&A...693A.164Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/693/A164CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/693/A164https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/693/A164http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/693/A164https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/693/A164https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/693/A164http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/693/A164GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/693/A164/tablea1SOPHIE RVs and activity indicators (BIS, Halpha, S index, FWHM, CCF contrast)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian date (BJD-2400000)dtime.epochdoubleDRVRelative radial velocity (G1)m/sphys.veloc;arith.difffloate_DRVError on DRVm/sstat.errorfloatBISCCF bisector spanm/sphys.velocfloate_BISError on BISm/sstat.errorfloatHalpha? Halpha index (2)spect.indexfloatnullablee_Halpha? Error on Halpha (2)stat.error;spect.linefloatnullableSindex? S-index calibrated to the Mount Wilson Observatory system (2)phot.flux;arith.ratiofloatnullablee_Sindex? Error on S indexstat.errorfloatnullableFWHMCCF FWHMkm/sspect.line.widthfloatContrastContrast of the CCF in % of depth%phot.flux;arith.ratiofloatJ/A+A/693/A164/tablea2SPIRou RVs and activity indicators (FWHM, velocity chromatic slope, Blong)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian date (BJD-2400000)dtime.epochdoubleDRVRelative radial velocity (G1)m/sphys.veloc;arith.difffloate_DRVError on DRVm/sstat.errorfloatFWHMCCF FWHMkm/sspect.line.widthfloate_FWHMError on FWHMkm/sstat.error;phys.angSizefloatCVSChromatic velocity slopem/sspect.indexfloate_CVSError on CVSm/sstat.errorfloatBlLongitudinal magnetic fieldGphys.magFieldfloate_BlError on BlGstat.errorfloat