J/A+A/452/245ivo://CDS.VizieR/J/A+A/452/245doi:10.26093/cds/vizier.34520245CDSNatta A.Testi L.Randich S.2017-06-22T14:28:21Z2008-09-14T07:55:03ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsaccretionstellar-masseseffective-temperatureinfrared-photometryline-intensitiesThe aim of this paper is to provide a measurement of the mass accretion rate in a large, complete sample of objects in the core of the star forming region rho Oph. The sample includes most of the objects (104 out of 111) with evidence of a circumstellar disk from mid-infrared photometry; it covers a stellar mass range from about 0.03 to 3M_{sun}_ and it is complete to a limiting mass of ~0.05M_{sun}_. We used J and K-band spectra to derive the mass accretion rate of each object from the intensity of the hydrogen recombination lines, Pa{beta} or Br{gamma}. For comparison, we also obtained similar spectra of 35 diskless objects.2006A&A...452..245Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/452/245CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/359/113 : X-ray and IR study of rho Oph dark cloud (Grosso+, 2000)J/ApJS/112/109 : rho Oph Near IR Positions and Photometry (Barsony+, 1997)J/A+A/372/173 : ISOCAM observations of the rho Ophiuchi cloud (Bontemps+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/452/245https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/452/245http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/452/245https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/452/245https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/452/245http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/452/245GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/452/245/yso (All Pre-Main-Sequence stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/452/245/yso?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/452/245/yso?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/452/245/yso?GETtext/xml+votable180.050000true246.4030833-24.26177780.005555555555555556Cone search capability for table J/A+A/452/245/tablec3 (Companions not resolved by 2MASS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/452/245/tablec3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/452/245/tablec3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/452/245/tablec3?GETtext/xml+votable180.050000true246.4088333-24.376750.0055555555555555566/42981 42983 429928.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/452/245?format=asciiInfrareddefaultJ/A+A/452/245/ysoAll Pre-Main-Sequence starsl_LaccLimit flag on Laccmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClSimbad column added by the CDSsrc.classcharSeq[1/105] Sequential number (1)meta.id;meta.mainintISOISOCAM number from Bontemps et al., Cat. <J/A+A/372/173> (G1)meta.idintm_ISO[ab] Multiplicity index on ISO (G1)meta.code.multipcharn_ISO[+*] Notes (2)meta.notecharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainJmag? 2MASS J magnitudemagphot.mag;em.IR.JfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.HfloatnullableKmag2MASS K magnitudemagphot.mag;em.IR.KfloatAJ? J-band extinctionmagphys.absorption;em.IR.JfloatnullablelogL? Stellar luminositylog(solLum)phys.luminosityfloatnullablelogTeff? Effective temperaturelog(K)phys.temperature.effectivefloatnullablelogM? Stellar masslog(solMass)phys.massfloatnullablel_EWPaLimit flag on EWPameta.code.errorcharEWPaPaschen{beta} equivalent width (negative values for emission lines)0.1nmspect.line.eqWidthfloatInst[SI] Instrument SOFI/NTT or ISAAC/UT1instrcharl_LPaLimit flag on LPameta.code.errorcharLPa? Paschen{beta} luminositysolLumphys.luminosityfloatnullableLacc? Accretion luminositysolLumphys.luminosityfloatnullablel_dM/dtaccLimit flag on dM/dtaccmeta.code.errorchardM/dtacc? Mass accretionsolMass/yrphys.mass.lossfloatnullableONamesOther namesmeta.idchar2MASSDisplay the 2MASS counterpartmeta.ref.urlcharJ/A+A/452/245/tablec3Companions not resolved by 2MASSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/5] Sequential numbermeta.id;meta.mainintISOISOCAM number from Bontemps et al., Cat. <J/A+A/372/173> (G1)meta.idintm_ISO[ab] Multiplicity index on ISO (G1)meta.code.multipcharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainSepSeparationarcsecpos.angDistance;src.orbitalfloatl_EWLimit flag on EWmeta.code.error;spect.line.eqWidthcharEWPaschen{beta} or Br{gamma} equivalent width (negative values for emission lines)0.1nmspect.line.eqWidthfloatLineLine of the equivalent widthmeta.id;spect.lineONamesOther namesmeta.idcharMSimbad column added by the CDSmeta.ref.urlchar