J/AJ/125/1537ivo://CDS.VizieR/J/AJ/125/1537doi:10.26093/cds/vizier.51251537CDSTsujimoto M.Koyama K.Kobayashi N.Goto M.Tsuboi Y.Tokunaga A.T.2023-04-06T16:50:54Z2003-08-03T20:56:18ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsinfrared-sourcesx-ray-sourcesinfrared-photometryWe conducted deep near-infrared (NIR) imaging observations of Orion molecular clouds 2 and 3 using the Quick Infrared Camera on the 88 inch (2.2m) telescope of the University of Hawaii. Our purposes were (1) to generate a comprehensive NIR source catalog of these star-forming clouds and (2) to identify the NIR counterpart of the Chandra X-ray sources that have no counterpart in the Two Micron All Sky Survey (2MASS) catalog. Our J-, H-, and K-band observations are ~2mag deeper than those of 2MASS and match the current Chandra observation well. We detected 1448 NIR sources, for which we derived the position, the J-, H-, and K-band magnitude, and the 2MASS counterpart. Using this catalog, we identified the NIR counterpart for ~42% of the 2MASS unidentified Chandra sources. The nature of these Chandra sources are discussed using their NIR colors and spatial distributions, and a dozen protostar and brown dwarf candidates are identified.2003AJ....125.1537Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/125/1537CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 2002)B/2mass : The 2MASS database (IPAC/UMass, 2000)II/241 : 2MASS Catalog Intermediate Data Release (IPAC/UMass, 2000)J/AJ/120/1426 : Chandra sources in ONC + BN-KL (Garmire+, 2000)J/ApJ/549/441 : Chandra observations of Orion Trapezium (Schulz+, 2001)J/ApJ/582/382 : Chandra X-ray sources in Orion Nebula Cluster (Flaccomio+ 2003)J/ApJ/566/974 : Chandra obs. of YSOs in OMC-2 and OMC-3 (Tsujimoto+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/125/1537https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/125/1537http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/125/1537https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/125/1537https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/125/1537http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/125/1537GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/125/1537/table2 (QUIRC source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/125/1537/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/125/1537/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/125/1537/table2?GETtext/xml+votable180.050000true83.6205833-5.14408330.005555555555555556Cone search capability for table J/AJ/125/1537/table3 (QUIRC identified Chandra sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/125/1537/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/125/1537/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/125/1537/table3?GETtext/xml+votable180.050000true83.657958-5.1466670.0055555555555555566/21439 228058.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/125/1537?format=asciiX-rayInfrareddefaultJ/AJ/125/1537/table2QUIRC source listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTKKObject identification number (TKK NNNN)meta.id;meta.mainintRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainl_JmagLimit flag on Jmag (2)meta.code.errorcharJmagThe 2MASS J-band magnitudemagphot.mag;em.IR.Jfloatf_Jmag[d] Flag on Jmag (3)meta.code.errorcharl_HmagLimit flag on Hmag (2)meta.code.errorcharHmagThe 2MASS H-band magnitudemagphot.mag;em.IR.Hfloatf_Hmag[d] Flag on Hmag (3)meta.code.errorcharl_KmagLimit flag on Kmag (2)meta.code.errorcharKmagThe 2MASS K-band magnitudemagphot.mag;em.IR.Kfloatf_Kmag[d] Flag on Kmag (3)meta.code.errorchar2MASSThe 2MASS identificationmeta.idchar2MShow the nearby (r<5'') 2MASS Sourcesmeta.refcharJ/AJ/125/1537/table3QUIRC identified Chandra sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TKT2002]X-ray source identification (1)meta.id;meta.maincharf_[TKT2002]Flag on [TKT2002] (2)meta.code.errorcharQUIRCThe QUIRC source identification, JHHMMSSss+DDMMSSsmeta.id.part;meta.maincharSepSeparation between Chandra and QUIRC sourcesarcsecpos.angDistancefloatAngleThe off-axis angle of the Chandra sourcearcmininstr.offsetfloatl_JmagLimit flag on Jmagmeta.code.errorcharJmagThe J-band magnitude in California Institute of Technology (CIT) systemmagphot.mag;em.IR.Jfloatl_J-HLimit flag on J-Hmeta.code.errorcharJ-HThe (J-H) color in CIT systemmagphot.color;em.IR.J;em.IR.Hfloatl_H-KLimit flag on H-Kmeta.code.errorcharH-K? The (H-K) color in CIT systemmagphot.color;em.IR.H;em.IR.Kfloatnullable_RAPosition (derived from QUIRC name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (derived from QUIRC name) (declination part)degpos.eq.dec;meta.main