Tycho-2 stars with IR excess J/MNRAS/363/1111 ivo://CDS.VizieR/J/MNRAS/363/1111 doi:10.26093/cds/vizier.73631111 CDS Clarke A.J. Oudmaijer R.D. Lumsden S.L. 2024-07-01T20:15:21Z 2006-03-09T16:18:27Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr pre-main-sequence-stars infrared-sources photometry Stars of all evolutionary phases have been found to have excess infrared emission due to the presence of circumstellar material. To identify such stars, we have positionally correlated the infrared Mid-Course Space Experiment (MSX) Point Source Catalogue (<V/114>) and the Tycho-2 optical catalogue (<I/259>). Near-mid-infrared colour criteria have been developed to select infrared excess stars. The search yielded 1938 excess stars; over half (979) have never previously been detected by IRAS. The excess stars were found to be young objects such as Herbig Ae/Be and Be stars, and evolved objects such as OH/IR (infrared) and carbon stars. A number of B-type excess stars were also discovered whose infrared colours could not be readily explained by known catalogued objects. 2005MNRAS.363.1111C https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/363/1111 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/259 : The Tycho-2 Catalogue (Hog+ 2000) IV/25 : HD identifications for Tycho-2 stars (Fabricius+, 2002) III/231 : The Tycho-2 Spectral Type Catalog (Wright+, 2003) V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/363/1111 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/363/1111 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/363/1111 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/363/1111 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/363/1111 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/363/1111 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/363/1111/samples (Sample merging the 5 samples: galactic plane, IRAS gap, LMC, SMC and star forming regions) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/363/1111/samples? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/363/1111/samples? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/363/1111/samples? 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42429-42430 42432 42435 42441 42444-42445 42448 42451-42453 42455-42456 42458 42464 42467 42469-42470 42477 42479 42481 42483 42485 42487-42489 42498 42500 42503-42504 42511-42512 42516 42522 42529 42560 42562 42564 42567 42821 43010-43011 43014 43016-43017 43019-43020 43022-43023 43028-43029 43031-43033 43038 43044 43046 43048 43051-43052 43054 43056 43060 43072 43076 43136-43138 43140 43145 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/363/1111?format=ascii Optical Infrared default J/MNRAS/363/1111/samples Sample merging the 5 samples: galactic plane, IRAS gap, LMC, SMC and star forming regions E(IR) Infrared colour excess (J-[8], K-[21] or K-[8]) mag float n_E(IR) [J 21 K] Infrared Excess Type (8) char 2MASS Display the 2MASS data within within 6" char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Sam Simbad column added by the CDS char TYC1 Tyc1 from Tycho-2 (<I/259>) Catalogue (1) int TYC2 Tyc2 from Tycho-2 (<I/259>) Catalogue (1) int TYC3 Tyc3 from Tycho-2 (<I/259>) Catalogue (1) int RAJ2000 Right Ascension (J2000) pos.eq.ra;meta.main DEJ2000 Declination (J2000) pos.eq.dec;meta.main Region Region, only for sfr.dat objects (2) char HD ? Henry Draper (<III/135>) number int nullable SpType Spectral Type from Tycho-2 Spectral Type Catalogue (<III/231>) char BTmag Optical B band magnitude mag float VTmag Optical V band magnitude mag float Jmag Near-IR J band magnitude (3) mag float Hmag Near-IR H band magnitude (3) mag float Kmag Near-IR K band magnitude (3) mag float n2M Number of extra 2MASS source within 6" (4) int Aband ? MSX (<V/114>) band A (8 micron) flux (5) Jy float nullable Cband ? MSX (<V/114>) band C (12 micron) flux (5) Jy float nullable Dband ? MSX (<V/114>) band D (14 micron) flux (5) Jy float nullable Eband ? MSX (<V/114>) band E (21 micron) flux (5) Jy float nullable q_Aband MSX flux quality for band A (6) int q_Cband MSX flux quality for band C (6) int q_Dband MSX flux quality for band D (6) int q_Eband MSX flux quality for band E (6) int IRAS [I] IRAS proximity flag (7) char