J/A+A/515/A75ivo://CDS.VizieR/J/A+A/515/A75doi:10.26093/cds/vizier.35150075CDSAlves de Oliveira C.Moraux E.Bouvier J.Bouy H.Marmo C.Albert L.2010-08-08T12:31:47Z2010-06-11T09:55:32ZCDS support team

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

cds-question@unistra.frmolecular-cloudsyoung-stellar-objectsinfrared-photometrymillimeter-astronomyphotometrysubmillimeter-astronomyStar formation theories are currently divergent regarding the fundamental physical processes that dominate the substellar regime. Observations of nearby young open clusters allow the brown dwarf (BD) population to be characterised down to the planetary mass regime, which ultimately must be accommodated by a successful theory. We used near-IR deep images (reaching completeness limits of approximately 20.5mag in J, and 18.9mag in H and Ks taken with the Wide Field IR Camera (WIRCam) at the Canada France Hawaii Telescope (CFHT) to identify candidate members of {rho} Oph in the substellar regime. A spectroscopic follow-up of a small sample of the candidates allows us to assess their spectral type, and subsequently their temperature and membership. We select 110 candidate members of the {rho} Ophiuchi molecular cloud, from which 80 have not previously been associated with the cloud. We observed a small sample of these and spectroscopically confirm six new brown dwarfs with spectral types ranging from M6.5 to M8.25.2010A&A...515A..75Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/515/A75CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/438/813 : Stellar population in {rho} Oph cloud core (Strom+, 1995)J/ApJS/112/109 : Rho Oph Near-IR Positions and Photometry (Barsony+, 1997)J/A+A/359/113 : X-ray and IR study of Rho Oph dark cloud (Grosso+, 2000)J/A+A/372/173 : ISOCAM observations of rho Ophiuchi cloud (Bontemps+, 2001)J/PASJ/55/653 : Chandra X-ray flares in rho Ophiuchi (Imanishi+, 2003)J/A+A/426/171 : H_2_ flows in rho Ophiuchi A (Khanzadyan+, 2004)J/ApJ/613/393 : X-ray and radio sources in {rho} Oph Core A (Gagne+, 2004)J/AJ/130/1733 : Optical spectroscopy of {rho} Oph stars (Wilking+, 2005)J/ApJ/630/381 : Mid-IR imaging in {rho} Oph (Barsony+, 2005)J/A+A/429/963 : XMM-Newton observation of the rho Oph cloud (Ozawa+, 2005)J/A+A/430/549 : C^18^O/C^17^O near rho Oph (Wouterloot+, 2005)J/A+A/447/609 : 1.2mm continuum observations in rho Oph cloud (Stanke+, 2006)J/A+A/452/245 : Near-IR photometry of PMS stars in rho Oph (Natta+, 2006)J/A+A/485/155 : HK photometry of rho Oph PMS stars (Alves de Oliveira+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/515/A75https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/515/A75http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/515/A75https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/515/A75https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/515/A75http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/515/A75GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/515/A75/table4 (List of substellar candidate members in {rho} Oph)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/515/A75/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/515/A75/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/515/A75/table4?GETtext/xml+votable180.050000true246.3297917-24.32427780.0055555555555555566/42981 42983 42992https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/515/A75?format=asciiInfraredRadiodefaultJ/A+A/515/A75/table4List of substellar candidate members in {rho} OphONameSimbad Namemeta.idcharFlagProperties of the candidate members (2)meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/110] Substellar candidate name, CFHTWIR-Oph NNNmeta.id;meta.mainintRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maini'mag? Aperture photometry i' from PrimeCam/Subarumagphot.mag;em.opt.Ifloatnullablee_i'mag? i'mag photometric errormagstat.error;phot.mag;em.opt.Ifloatnullablez'mag? Aperture photometry z' from PrimeCam/Subarumagphot.mag;em.opt.Ifloatnullablee_z'mag? z'mag photometric errormagstat.error;phot.mag;em.opt.IfloatnullableJmag? PSF photometry J magnitude from WIRCam/CFHTmagphot.mag;em.IR.Jfloatnullablee_Jmag? Jmag photometric errormagstat.error;phot.mag;em.IR.JfloatnullableHmag? PSF photometry H magnitude from WIRCam/CFHTmagphot.mag;em.IR.Hfloatnullablee_Hmag? Hmag photometric errormagstat.error;phot.mag;em.IR.HfloatnullableKsmag? PSF photometry Ks magnitude from WIRCam/CFHTmagphot.mag;em.IR.Kfloatnullablee_Ksmag? Ksmag photometric errormagstat.error;phot.mag;em.IR.Kfloatnullable[3.6]? IRAC 3.6um magnitude as retrieved from the NASA/IPAC Infrared Science Archivemagphot.mag;em.IR.3-4umfloatnullablee_[3.6]? [3.6] photometric errormagstat.errorfloatnullable[4.5]? IRAC 4.5um magnitude as retrieved from the NASA/IPAC Infrared Science Archivemagphot.mag;em.IR.4-8umfloatnullablee_[4.5]? [4.5] photometric errormagstat.errorfloatnullable[5.4]? IRAC 5.4um magnitude as retrieved from the NASA/IPAC Infrared Science Archivemagphot.flux.density;em.IR.4-8umfloatnullablee_[5.4]? [5.4] photometric errormagstat.errorfloatnullable[8.0]? IRAC 8.0um magnitude as retrieved from the NASA/IPAC Infrared Science Archivemagphot.flux.density;em.IR.8-15umfloatnullablee_[8.0]? [8.0] photometric errormagstat.errorfloatnullable[24]? MIPS 24um magnitude as retrieved from the NASA/IPAC Infrared Science Archivemagphot.flux.density;em.IR.15-30umfloatnullablee_[24]? [24] photometric errormagstat.errorfloatnullableSpTMK spectral type as determined in this studysrc.spTypecharAV? AV as determined in this studymagphys.absorptionfloatnullableRefReferences for {rho} Ophiuchi members, according to these studies (1)meta.refchar