J/A+A/688/A112ivo://CDS.VizieR/J/A+A/688/A112doi:10.26093/cds/vizier.36880112CDSvon Stauffenberg A.Trifonov T.Quirrenbach A.Reffert S.Kaminski A.,Dreizler S.Ribas I.Reiners A.Kuerster M.Twicken J.D.Rapetti D.,Caballero J.A.Amado P.J.Bejar V.J.S.Cifuentes C.Gongora S.,Hatzes A.P.Henning T.Montes D.Morales J.C.Schweitzer A.2024-11-29T20:04:35Z2024-08-09T08:53:35ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsradial-velocityvisible-astronomyspectroscopyGJ 581 is a nearby M dwarf known to host a packed multiple planet system composed of two super-Earths and a Neptunemass planet. We present new orbital analyses of the GJ 581 system, utilizing recent radial velocity (RV) data obtained from the CARMENES spectrograph combined with newly reprocessed archival data from the HARPS and HIRES spectrographs. Our aim was to analyze the post-discovery spectroscopic data of GJ 581, which were obtained with CARMENES. In addition, we used publicly available HIRES and HARPS spectroscopic data to seek evidence of the known and disputed exoplanets in this system. We aimed to investigate the stellar activity of GJ 581 and update the planetary system's orbital parameters using state-of-theart numerical models and techniques. We performed a periodogram analysis of the available precise CARMENES, HIRES, and HARPS RVs and of stellar activity indicators.We conducted detailed orbital analyses by testing various orbital configurations consistent with the RV data.We studied the posterior probability distribution of the parameters fit to the data and we explored the long-term stability and overall orbital dynamics of the GJ 581 system. We refined the orbital parameters of the GJ 581 system using the most precise and complete set of Doppler data available. Consistent with the existing literature, our analysis confirms that the system is unequivocally composed of only three planets detectable in the present data, dismissing the putative planet GJ 581 d as an artifact of stellar activity. Our N-body fit reveals that the system's inclination is i=47,0^+14.6^_-13.0_deg, which implies that the planets could be up to 30% more massive than their previously reported minimum masses. Furthermore, we report that the GJ 581 system exhibits long-term stability, as indicated by the posterior probability distribution, characterized by secular dynamical interactions without the involvement of mean motion resonances.2024A&A...688A.112Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/688/A112CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/507/487 : GJ 581 radial velocity curve (Mayor+, 2009)J/ApJ/723/954 : HIRES radial velocities of GJ 581 (Vogt+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/688/A112https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/688/A112http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/688/A112https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/688/A112https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/688/A112http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/688/A112GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/688/A112/tablea2HARPS Doppler measurements and activity index measurements of GJ 581 evaluated using SERVAL and their corresponding uncertaintiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateJulian DateJDtime.epochdoubleRVRadial Velocitym/sphys.veloc;pos.heliocentricfloate_RVError in Radial Velocitym/sstat.errorfloatHalphaH-alpha indexspect.indexfloate_HalphaError in H-alpha indexstat.error;spect.linefloatNaD1Sodium D1 indexspect.indexfloate_NaD1Error in Sodium D1 indexstat.errorfloatNaD2Sodium D2 indexspect.indexfloate_NaD2Error in Sodium D2 indexstat.errorfloatCRXChromatic indexspect.indexfloate_CRXError in chromatic indexstat.errorfloatdLWLine width variationspect.line.widthfloate_dLWError in line width variationstat.errorfloatFWHMFull width at half maximumspect.line.widthdoublee_FWHMError in FWHMstat.error;phys.angSizefloatContContrastphot.flux;arith.ratiofloate_ContError in contraststat.errorfloatBISBisector spanphys.velocfloate_BISError in bisector spanstat.errorfloatJ/A+A/688/A112/tablea3CARMENES RV measurements and activity index measurements of GJ 581 evaluated by SERVAL and their corresponding uncertaintiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateJulian DateJDtime.epochdoubleRVRadial Velocitym/sphys.veloc;pos.heliocentricfloate_RVError in Radial Velocitym/sstat.errorfloatHalphaH-alpha indexspect.indexfloate_HalphaError in H-alpha indexstat.error;spect.linefloatNaDSodium indexspect.indexfloate_NaDError in Sodium indexstat.errorfloatCRXChromatic indexspect.indexfloate_CRXError in chromatic indexstat.errorfloatdLWLine width variationspect.line.widthfloate_dLWError in line width variationstat.errorfloatFWHMFull width at half maximumspect.line.widthdoublee_FWHMError in FWHMstat.error;phys.angSizefloatContContrastphot.flux;arith.ratiofloate_ContError in contraststat.errorfloatBISBisector spanphys.velocfloate_BISError in bisector spanstat.errorfloat