J/ApJ/610/1064ivo://CDS.VizieR/J/ApJ/610/1064doi:10.26093/cds/vizier.16101064CDSBarrado Y Navascues D.Stauffer J.R.Bouvier J.Jayawardhana R.,Cuillandre J.-C.2005-09-14T21:57:42Z2005-09-14T21:55:16ZCDS support team

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

cds-question@unistra.fropen-star-clusterspre-main-sequence-starsvisible-astronomykron-cousins-photometryinfrared-photometryspectroscopyBy collecting optical and infrared photometry and low-resolution spectroscopy, we have identified a large number of low-mass stars and brown dwarf candidates belonging to the young cluster (~5Myr) associated with the binary star {lambda} Orionis. The lowest mass object found is an M8.5 with an estimated mass of 0.02M_{Sun}_ (~0.01M_{Sun}_ for objects without spectroscopic confirmation). For those objects with spectroscopy, the measured strength of the H{alpha} emission line follows a distribution similar to other clusters with the same age range, with larger equivalent widths for cooler spectral types.2004ApJ...610.1064Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/610/1064CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/AJ/118/2409 : {lambda} Ori PMS stars VRI photometry (Dolan+, 1999)J/AJ/123/387 : {lambda} Ori star-forming region VRI photometry (Dolan+, 2002)J/AJ/121/2124 : {lambda} Ori pre-main-sequence stars photometry (Dolan+, 2001)J/A+A/357/1001 : {lambda}-Orionis ring in CO (Lang+ 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/610/1064https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/610/1064http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/610/1064https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/610/1064https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/610/1064http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/610/1064GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/610/1064/table1 (Positions and optical photometric data for our {lambda} Orionis candidate members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/610/1064/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/610/1064/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/610/1064/table1?GETtext/xml+votable180.050000true83.44658339.92736110.005555555555555556Cone search capability for table J/ApJ/610/1064/table2 (Positions and IR photometry from 2MASS for our {lambda} Orionis candidate members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/610/1064/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/610/1064/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/610/1064/table2?GETtext/xml+votable180.050000true83.44670839.92736110.0055555555555555566/23717 23719 23728https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/610/1064?format=asciiOpticalInfrareddefaultJ/ApJ/610/1064/table1Positions and optical photometric data for our {lambda} Orionis candidate membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLOri-CFHT{lambda} Ori candidate numberintprimaryn_LOri-CFHTindicates that more infrared/spectroscopic data can be found in correlated tablescharRAJ2000Hour of Right Ascension (J2000)DEJ2000Degree of Declination (J2000)IcmagS? Shallow exposure I_c_ band magnitudemagfloatnullable(Rc-Ic)S? Shallow exposure Rc-Ic color indexmagfloatnullablee_RcmagS? Shallow exposure R_c_ band error (1)magfloatnullablee_IcmagS? Shallow exposure I_c_ band error (1)magfloatnullableIcmagD? Deep exposure I_c_ band magnitudemagfloatnullable(Rc-Ic)D? Deep exposure Rc-Ic color indexmagfloatnullablee_RcmagD? Deep exposure R_c_ magnitude error (1)magfloatnullablee_IcmagD? Deep exposure I_c_ magnitude error (1)magfloatnullableJ/ApJ/610/1064/table2Positions and IR photometry from 2MASS for our {lambda} Orionis candidate membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLOri-CFHT{lambda} Ori candidate numberintIcmagThe I_c_ band magnitudemagfloatDistOptical/IR source to 2MASS coordinate distancearcsecfloatRAJ20002MASS Hour of Right Ascension (J2000)DEJ20002MASS Degree of Declination (J2000)JmagThe J band magnitudemagfloate_Jmag? Uncertainty in JmagmagfloatnullableHmagThe H band magnitudemagfloate_Hmag? Uncertainty in HmagmagfloatnullableKmagThe K band magnitudemagfloate_Kmag? Uncertainty in KmagmagfloatnullableM1(K,J-K) membership selection criteria (1)charM2(Ic,I-K) membership selection criteria (1)charM3(Ic-J,H-K) membership selection criteria (1)charM4(Ic-J,I-K) membership selection criteria (1)charM5(J-H,H-K) membership selection criteria (1)charM6Spectral type membership selection criteria (1)charMCodeFinal membership assessment (G1)char2MASSDisplay the 2MASS stars (within 3'')charJ/ApJ/610/1064/table3Spectroscopic datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLOri-CFHTSource designationintSpTypeMK Spectral typecharf_SpType[a] Flag on SpType (1)charW(Ha)? H{alpha} line width0.1nmfloatnullablee_W(Ha)? Uncertainty in W(Ha)0.1nmfloatnullableMemMembership assessment (G1)char