J/A+A/538/A142ivo://CDS.VizieR/J/A+A/538/A142doi:10.26093/cds/vizier.35380142CDSRusseil D.Zavagno A.Adami C.Anderson L.D.Bontemps S.Motte F.,Rodon J.A.Schneider N.Ilmane A.Murphy K.J.2012-04-12T09:55:13Z2012-02-16T08:26:22ZCDS support team

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

cds-question@unistra.frearly-type-starsob-starsinfrared-photometryvisible-astronomybroad-band-photometryStar-forming complexes are large structures exhibiting massive star-formation at different stages of evolution, from dense cores to well-developed HII regions. They are very interesting for the study of the formation and evolution of stars. NGC 6334 and NGC 6357 are two active and relatively nearby star-forming complexes. From the extinction map and the sub-mm cold dust emission, and because they have similar velocities, these regions are most likely connected. However, located in the direction of the Galactic center their radial velocity is not representative of their distance. An alternative is then to determine the distance of NGC 6334 and NGC 6357 from their stellar content. Our aim is to perform a census of O-B3 ionising stars in NGC 6334 and NGC 6357, to determine the extinction coefficient, and the distance of both regions. A census of O-B3 stars is an essential basis for estimating the statistical lifetime of the earliest massive star-forming phases.2012A&A...538A.142Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/538/A142CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/69/99 : NGC 6334 centers of star formation JHK phot. (Straw+ 1989)J/A+A/316/102 : JHK Photometry in NGC 6334 (Tapia+, 1996)J/A+A/357/1020 : JHK photometry in NGC 6334 IV (Persi+, 2000)J/ApJ/668/906 : Massive clumps in NGC 6334 (Munoz+, 2007)J/ApJS/168/100 : X-ray study of star-forming region NGC 6357 (Wang+, 2007)J/AJ/136/2083 : Clumps in NGC 6334 from 450/850um obs. (Matthews+, 2008)J/A+A/515/A55 : NGC 6334-NGC 6357 complex (Russeil+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/538/A142https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/538/A142http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/538/A142https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/538/A142https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/538/A142http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/538/A142GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/538/A142/tablea2 (Catalogue of stars: R magnitudes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A142/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A142/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A142/tablea2?GETtext/xml+votable180.050000true261.087083-33.9703060.005555555555555556Cone search capability for table J/A+A/538/A142/tablea1 (Stars with U, B, and V magnitudes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A142/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A142/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A142/tablea1?GETtext/xml+votable180.050000true260.5727917-35.7189750.0055555555555555565/10614-10615 6/42445 42447 42454-42455 42480-42481 424842.762881831355591e-19 6.118840631666147e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/538/A142?format=asciiOpticalInfrareddefaultJ/A+A/538/A142/tablea2Catalogue of stars: R magnitudesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)pos.eq.dec;meta.mainindexedUBVNumber of UBV matching sources in table A1meta.numberintnullableRmagR magnitudemagphot.mag;em.opt.Rfloate_RmagR magnitude uncertaintymagstat.error;phot.mag;em.opt.RfloatJ/A+A/538/A142/tablea1Stars with U, B, and V magnitudesBmagB magnitudemagphot.mag;em.opt.BfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)pos.eq.dec;meta.mainindexednRNumber of R-band matching sources in table A2meta.numberintnullableVmagV magnitudemagphot.mag;em.opt.Vfloate_VmagV magnitude uncertaintymagstat.error;phot.mag;em.opt.Vfloate_BmagB magnitude uncertaintymagstat.error;phot.mag;em.opt.BfloatUmagU magnitudemagphot.mag;em.opt.Ufloate_UmagU magnitude uncertaintymagstat.error;phot.mag;em.opt.Ufloat