J/A+A/692/A263ivo://CDS.VizieR/J/A+A/692/A263doi:10.26093/cds/vizier.36920263CDSDelorme P.Chomez A.Squicciarini V.Janson M.Flasseur O.Schib O.,Gratton R.Lagrange A.-M.Langlois M.Mayer L.Helled R.Reffert S.,Kiefer F.Biller B.Chauvin G.Fontanive C.Henning T.Kenworthy M.,Marleau G.-D.Mesa D.Meyer M.R.Mordasini C.Ringqvist S.C.,Samland M.Vigan A.Viswanath G.2025-02-26T20:02:51Z2024-12-18T08:27:13ZCDS support team

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

cds-question@unistra.frb-starsexoplanetsvisible-astronomyExoplanets form from circumstellar protoplanetary discs whose fundamental properties (notably their extent, composition, mass, temperature and lifetime) depend on the host star properties, such as their mass and luminosity. B-stars are among the most massive stars and their protoplanetary discs test extreme conditions for exoplanet formation. This paper investigates the frequency of giant planet companions around young B-stars (median age of 16Myr) in the Scorpius-Centaurus association, the closest association containing a large population of B-stars. We systematically search for massive exoplanets with the high-contrast direct imaging instrument SPHERE using the data from the BEAST survey, that targets an homogeneous sample of young B-stars from the wide Sco-Cen association. We derive accurate detection limits in case of non-detections. We found evidence in previous papers for two substellar companions around 42 stars. The masses of these companions are straddling the ~13 Jupiter mass deuterium burning limit but their mass ratio with respect to their host star is close to that of Jupiter. We derive a frequency of such massive planetary mass companions around B stars of 11_-5_^+7^%, accounting for the survey sensitivity.2024A&A...692A.263Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/692/A263CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/646/A164 : BEAST sample properties (Janson+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/692/A263https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/692/A263http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/692/A263https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/692/A263https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/692/A263http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/692/A263GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/692/A263/sources (List of studied sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/692/A263/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/692/A263/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/692/A263/sources?GETtext/xml+votable180.050000true155.74225-66.90147220.0055555555555555566/37236 37268 38023 38212 41534 41606 41815 41917 42428 42549 42623 42658 42674 42696 42800 43011 43035 43062 43067 43101 43117 43138 43140 43153 43229 43238 43279 43365 43383 43397 43416 43531 43538 44119 44436https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/692/A263?format=asciiOpticaldefaultJ/A+A/692/A263/sourcesList of studied sourcesSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectStar namemeta.id;meta.maincharRAJ2000Simbad right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainJ/A+A/692/A263/candcompDetection tablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectStar namemeta.id;meta.maincharObs.dateObserving nightstime.epochnullableS/NSignal to noise ratiostat.snrfloatSepSeparationmaspos.angDistancefloate_SepError on separationmasstat.errordoublePAPosition angledegpos.posAngfloate_PAError on position angledegstat.errordoubleContl1Contrast relative to the star in the first bandphot.mag;arith.diffdoublee_Contl1Error on contrast relative to the star in the first bandstat.errordoubleContl2Contrast relative to the star in the second bandphot.mag;arith.diffdoublee_Contl2Error on contrast relative to the star in the second bandstat.errordoubleStatusFinal status of the detectionmeta.notechar