J/MNRAS/492/431ivo://CDS.VizieR/J/MNRAS/492/431doi:10.26093/cds/vizier.74920431CDSBohn A.J.Kenworthy M.A.Ginski C.Manara C.F.Pecaut M.J.de Boer J.,Keller C.U.Mamajek E.E.Meshkat T.Reggiani M.Todorov K.O.Snik F.2024-08-20T20:15:45Z2020-02-13T07:34:55ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsk-starsexoplanetshertzsprung-russell-diagramThe Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70 young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the Scorpius-Centaurus association with an average age of 15+/-3Myr. We report the detection of a co-moving companion around the K3IV star TYC 8998-760-1 (2MASSJ13251211-6456207) that is located at a distance of 94.6+/-0.3pc using SPHERE/IRDIS on the VLT. Spectroscopic observations with VLT/X-SHOOTER constrain the mass of the star to 1.00+/-0.02M_{sun}_ and an age of 16.7+/-1.4Myr. The companion TYC 8998-760-1 b is detected at a projected separation of 1.71arcsec, which implies a projected physical separation of 162au. Photometric measurements ranging from Y to M band provide a mass estimate of 14+/-3M_Jup_ by comparison to BT-Settl and AMES-dusty isochrones, corresponding to a mass ratio of q=0.013+/-0.003 with respect to the primary. We rule out additional companions to TYC 8998-760-1 that are more massive than 12M_Jup_ and farther than 12au away from the host. Future polarimetric and spectroscopic observations of this system with ground and space based observatories will facilitate testing of formation and evolution scenarios shaping the architecture of the circumstellar environment around this 'young Sun'.2020MNRAS.492..431Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/492/431CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/492/431https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/492/431http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/492/431https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/492/431https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/492/431http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/492/431GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/492/431/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/492/431/list?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/492/431/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/492/431/list?GETtext/xml+votable180.050000true201.3005417-64.93908330.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/MNRAS/492/4316/41666https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/492/431?format=asciidefaultJ/MNRAS/492/431/fig_7aContrast limits of our data reductionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSepProjected separationarcsecpos.angDistancefloatDeltaY2Magnitude contrast Y2 bandmagphot.mag;arith.difffloatDeltaY3Magnitude contrast Y3 bandmagphot.mag;arith.difffloatDeltaJ2Magnitude contrast J2 bandmagphot.mag;arith.difffloatDeltaJ3Magnitude contrast J3 bandmagphot.mag;arith.difffloatDeltaH2Magnitude contrast H2 bandmagphot.mag;arith.difffloatDeltaH3Magnitude contrast H3 bandmagphot.mag;arith.difffloatDeltaK1Magnitude contrast K1 bandmagphot.mag;arith.difffloatDeltaK2Magnitude contrast K2 bandmagphot.mag;arith.difffloatDeltaL'Magnitude contrast L' band (1)magphot.mag;arith.difffloatDeltaM'Magnitude contrast M' band (1)magphot.mag;arith.difffloatJ/MNRAS/492/431/fig_7bMass limits of our data reduction.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSepProjected separationarcsecpos.angDistancefloatMassY2Mass limit Y2 band(1.898187x10+27kg)phys.massfloatMassY3Mass limit Y3 band(1.898187x10+27kg)phys.massfloatMassJ2Mass limit J2 band(1.898187x10+27kg)phys.massfloatMassJ3Mass limit J3 band(1.898187x10+27kg)phys.massfloatMassH2Mass limit H2 band(1.898187x10+27kg)phys.massfloatMassH3Mass limit H3 band(1.898187x10+27kg)phys.massfloatMassK1Mass limit K1 band(1.898187x10+27kg)phys.massfloatMassK2Mass limit K2 band(1.898187x10+27kg)phys.massfloatMassL'Mass limit L' band (1)(1.898187x10+27kg)phys.massfloatMassM'Mass limit M' band (1)(1.898187x10+27kg)phys.massfloatJ/MNRAS/492/431/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datetime.epoch;obsnullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar