JHK photometry in Cha IJ/AJ/121/974ivo://CDS.VizieR/J/AJ/121/974doi:10.26093/cds/vizier.51210974CDSGomez M.Kenyon S.J.2023-04-06T16:50:44Z2001-05-07T17:58:26ZCDS support teamCDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, Francecds-question@unistra.frmolecular-cloudsinfrared-photometrypre-main-sequence-starsWe describe a near-infrared imaging survey covering ~1deg^2^ of the Chamaeleon I dark cloud. The survey is complete for K<15.0, H<16.0, and J<16.5, roughly 2 magnitudes more sensitive than previous large-scale surveys. We use the large number of background stars detected to derive an accurate near-infrared extinction law for the cloud and select new candidate members with near-infrared color excesses. We list ~100 candidates of the cloud with K>=2.0, based on their positions in the J-H, H-K color-color diagram. These new stars have low luminosities (K~12-16, H-K>~0.5-1.5) and may have masses close to or even below the hydrogen-burning limit.2001AJ....121..974Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/121/974CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/357/219 : ISOCAM observations in Cha I. (Persi+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/121/974https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/121/974http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/121/974https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/121/974https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/121/974http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/121/974GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/121/974/table3 (Candidate pre-main-sequence stars with K<14.0)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/974/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/974/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/974/table3?GETtext/xml+votable180.050000true166.141667-78.0238890.005555555555555556Cone search capability for table J/AJ/121/974/table4 (Candidate pre-main-sequence stars with K>14.0)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/974/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/974/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/974/table4?GETtext/xml+votable180.050000true160.198333-77.6136110.0055555555555555566/36950 36953 36955-36957 37128https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/121/974?format=asciiInfrareddefault
J/AJ/121/974/table3Candidate pre-main-sequence stars with K<14.0[GK2001]Star numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_[GK2001][a] Indicates star has a fuzzy K imagemeta.code.errorcharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainKmagK band magnitudemagphot.mag;em.IR.KfloatH-KThe (H-K) colormagphot.color;em.IR.H;em.IR.KfloatJ-HThe (J-H) colormagphot.color;em.IR.J;em.IR.HfloatIDIdentificationmeta.idcharr_ID? References on ID (1)meta.refintnullable
J/AJ/121/974/table4Candidate pre-main-sequence stars with K>14.0recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[GK2001]Star numbermeta.id;meta.mainintf_[GK2001][a] Indicates star has a fuzzy K imagemeta.code.errorcharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainKmagK band magnitudemagphot.mag;em.IR.KfloatH-KThe (H-K) colormagphot.color;em.IR.H;em.IR.KfloatJ-HThe (J-H) colormagphot.color;em.IR.J;em.IR.HfloatIDIdentificationmeta.idcharr_ID? References on ID (1)meta.refintnullable