J/AJ/143/43ivo://CDS.VizieR/J/AJ/143/43doi:10.26093/cds/vizier.51430043CDSFarina C.Bosch G.L.Barba R.H.2018-02-01T11:50:43Z2013-04-23T12:27:10ZCDS support team

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

cds-question@unistra.frinfrared-photometryh-ii-regionsWe present a near-infrared study focused on the detection and characterization of the youngest stellar component of the NGC 604 giant star-forming region in the Triangulum galaxy (M 33). By means of color-color diagrams derived from the photometry of JHK_s_ images taken with the Gemini Near Infrared Imaging and Spectrometer (NIRI), we have found 68 candidate massive young stellar objects. The spatial distribution of these sources matches the areas where previous studies suggested that star formation might be taking place, and the high spatial resolution of our deep NIRI imaging allows us to pinpoint the star-forming knots. An analysis of the fraction of objects that show infrared excess suggests that the star formation is still active, supporting the presence of a second generation of stars being born, although the evidence for or against sequential star formation does not seem to be conclusive.2012AJ....143...43Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/43CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/411/263 : JHK variable stars in M33 (Javadi+ 2011)J/ApJ/705/1364 : MIR catalog of point sources in M33 (Thompson+, 2009)J/A+A/487/131 : JHKs photometry of LPVs in M33 (Cioni+, 2008)J/ApJ/664/850 : Spitzer observations of stars in M33 (McQuinn+, 2007)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/AJ/121/861 : BVI photometry of central part of M33 (Macri+, 2001)J/ApJ/505/793 : New WR star in M33 (Massey+, 1998)J/ApJ/456/174 : Intermediate-Mass Population in NGC 604 (Hunter+ 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/43https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/43http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/43https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/43https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/43http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/43GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/43/table2 (Final JHKs photometry table)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/43/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/43/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/43/table2?GETtext/xml+votable180.050000true23.6167608330.795771110.0055555555555555566/21558.562429046199531e-20 1.6921341730348006e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/43?format=asciiInfrareddefaultJ/AJ/143/43/table2Final JHKs photometry tablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[53/4427] Internal object identification number (<[FBB2012] NNNN> in Simbad)meta.id;meta.mainintf_ID[*] *: object which exhibits IR excessmeta.codecharRAJ2000[23.61/23.66] Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000[30.76/30.80] Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainJmagApparent magnitude in MKO J filter (1)magphot.mag;em.IR.Jfloate_JmagThe error in Jmag (1)magstat.error;phot.mag;em.IR.JfloatHmagApparent magnitude in MKO H filter (1)magphot.mag;em.IR.Hfloate_HmagThe error in Hmag (1)magstat.error;phot.mag;em.IR.HfloatKsmagApparent magnitude in MKO Ks filter (1)magphot.mag;em.IR.Kfloate_KsmagThe error in Ksmag (1)magstat.error;phot.mag;em.IR.KfloatJ-H[-0.58/4.75] The (J-H) color indexmagphot.color;em.IR;em.IRfloatH-Ks[-1.97/2.2] The (H-Ks) color indexmagphot.color;em.IR;em.IRfloat