J/A+A/624/A29ivo://CDS.VizieR/J/A+A/624/A29doi:10.26093/cds/vizier.36240029CDSCugno G.Quanz S.P.Launhardt R.Musso Barcucci A.Brems S.S.,Cheetham A.Godoy N.Kennedy G.M.Henning T.Mueller A.Olofsson J.,Pepe F.Quirrenbach A.Reffert S.Rickman E.L.Segransan D.2020-01-31T15:21:17Z2019-04-03T06:38:35ZCDS support team

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

cds-question@unistra.frdwarf-starsinfrared-photometryWithin the NaCo-ISPY exoplanet imaging program, we aim at detecting and characterizing the population of low-mass companions at wide separations (>~10AU). We observed R CrA twice with the NaCo instrument at the Very Large Telescope (VLT) in the L' filter with a one year time baseline in between. We used artificial negative signals to determine the position and brightness of the companion and the related uncertainties. The companion is detected at a separation of 196.8+/-4.5/196.6+/-5.9mas (18.7+/-1.3/18.7+/-1.4AU) and position angle of 134.7+/-0.5{deg}/133.7+/-0.7{deg} in the first/second epoch observation. We measure a contrast of 7.29+/-0.18/6.70+/-0.15mag with respect to the primary. A study of the stellar proper motion rejects the hypothesis that the signal is a background object. Depending on the assumed age, extinction, and brightness of the primary, the stellar companion has a mass between 0.10+/-0.02M_{sun}_ and 1.03^+0.20^_-0.18_M_{sun}_ range, if no contribution from circumsecondary material is taken into account. The presence of this companion needs to be taken into account when analyzing the complex circumstellar environment of R CrA.2019A&A...624A..29Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/624/A29CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/350/883 : R CrA ISOCAM observations (Olofsson+, 1999)J/A+A/488/987 : Near-infrared survey of R CrA cloud (Haas+, 2008)J/ApJS/194/43 : YSOs candidates and knots in CrA cloud (Peterson+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/624/A29https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/624/A29http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/624/A29https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/624/A29https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/624/A29http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/624/A29GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/624/A29/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/624/A29/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/624/A29/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/624/A29/list?GETtext/xml+votable180.050000true285.47367-36.952260.0055555555555555566/47828https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/624/A29?format=asciiInfrareddefaultJ/A+A/624/A29/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.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