J/AJ/163/295ivo://CDS.VizieR/J/AJ/163/295doi:10.26093/cds/vizier.51630295CDSBenedict G.F.McArthur B.E.Nelan E.P.Wittenmyer R.Barnes R.,Smotherman H.Horner J.2022-11-07T08:04:05Z2022-10-24T06:26:16ZCDS support team

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

cds-question@unistra.frexoplanetshigh-velocity-starsvisible-astronomyspectroscopyradial-velocityastrometrytrigonometric-parallaxWith Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures, we explore the exoplanetary system {mu}Arae. Our modeling of the radial velocities results in improved orbital elements for the four previously known components. Our astrometry contains no evidence for any known companion but provides upper limits for three companion masses. A final summary of all past Fine Guidance Sensor exoplanet astrometry results uncovers a bias toward small inclinations (more face-on than edge-on). This bias remains unexplained by small number statistics, modeling technique, Fine Guidance Sensor mechanical issues, or orbit modeling of noise-dominated data. A numerical analysis using our refined orbital elements suggests that planet d renders the {mu}Arae system dynamically unstable on a timescale of 105yr, in broad agreement with previous work.2022AJ....163..295Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/295CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/ApJ/693/1084 : Ten new and updated multiplanet systems (Wright+, 2009)J/ApJ/715/1203 : {upsilon} Andromedae system with HST (McArthur+, 2010)J/AJ/142/187 : HST observations of 7 Pop.II variable stars (Benedict+, 2011)J/A+A/527/A140 : Mass limits on substellar companions (Reffert+, 2011)J/ApJ/795/41 : HD128311 radial velocity & astrometric data (McArthur+, 2014)J/A+A/575/A18 : Revising the ages of planet-hosting stars (Bonfanti+, 2015)J/AJ/152/141 : Solar neighborhood. XXXVII. RVs for M dwarfs (Benedict+, 2016)J/AJ/153/258 : 2007.5 to 2010.4 HST astrometry of HD 202206 (Benedict+, 2017)J/A+A/605/A72 : Planetary systems AMD-stability (Laskar+, 2017)J/AJ/155/126 : Radial velocities & photometry of Kdwarf HD26965 (Diaz+, 2018)J/A+A/615/A76 : Spectroscopic parameters of stars (SPECIES). I. (Soto+, 2018)J/A+A/636/A74 : HARPS radial velocity database (Trifonov+, 2020)J/AJ/161/285 : Absorption & emission lines & RVel for vA351 (Benedict+, 2021)J/ApJS/254/42 : Hipparcos-Gaia (EDR3) Catalog of Accelerations (Brandt, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/295https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/295http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/295https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/295https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/295http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/295GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/163/295/table2Radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRef[11/15] Radial Velocity reference (1)meta.refintJD[50915/57233] Julian Date; JD-2400000.0dtime.epochdoubleRVel[-9.42/0.07] Radial Velocitykm/sphys.veloc;pos.heliocentricfloate_RVel[0.0001/0.02] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatJ/AJ/163/295/table5{mu} Arae field astrometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/36] Set (orbit) numbermeta.id;meta.numberintName[3/27] Star identifier; 3 = {mu} Araemeta.id;meta.mainintHSTHST archive IDmeta.id.crosscharPA[0/286] HST V3 position angledegpos.posAngfloatRA[-233/130] OFAD-corrected FGS x positionarcsecpos.cartesian.x;instr.detDE[-113/105] OFAD-corrected FGS y positionarcsecpos.cartesian.y;instr.dete_RA[0.001/0.009] Uncertainty in oRAarcsecstat.error;pos.eq.radoublee_DE[0.0009/0.009] Uncertainty in oDEarcsecstat.error;pos.eq.decdoubleJD[54289/55332] Time of observation; JD-2400000.5dtime.epochdoubleplxRA[-1.63/1.62] Parallax factor in RAarith.factor;pos.parallaxdoubleplxDE[-0.47/0.35] Parallax factor in DECarith.factor;pos.parallaxdouble