J/A+A/371/497ivo://CDS.VizieR/J/A+A/371/497doi:10.26093/cds/vizier.33710497CDSPietrzynski G.Gieren W.Fouque P.Pont F.2001-09-15T10:06:00Z2001-09-15T10:05:56ZCDS support team

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

cds-question@unistra.frstellar-associationsob-starsWe present results of a search for OB associations in NGC 300. Using an automatic and objective method (PLC technique) 117 objects were found. Statistical tests indicate that our sample is contaminated by less than 10 detections due to random concentrations of blue stars. Spatial distributions of detected associations and H II regions are strongly correlated. The size distribution reveals a significant peak at about 60{mu}rad which corresponds to 125 parsecs if a distance modulus of 26.66mag is assumed. Besides the objects with sizes corresponding to typical associations we also found several much larger objects. A second level application of our detection method revealed that most of these are composed of smaller subgroups, with sizes of about 100pc.2001A&A...371..497Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/371/497CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/371/497https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/371/497http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/371/497https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/371/497https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/371/497http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/371/497GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/371/497/table3 (OB association candidates in the NGC 300 found in the regions of potential stellar-complexes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/371/497/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/371/497/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/371/497/table3?GETtext/xml+votable180.050000true13.567917-37.58250.005555555555555556Cone search capability for table J/A+A/371/497/table1 (OB association candidates in NGC 300)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/371/497/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/371/497/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/371/497/table1?GETtext/xml+votable180.050000true13.545417-37.6286110.0055555555555555566/35536 35538https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/371/497?format=asciiOpticaldefaultJ/A+A/371/497/table3OB association candidates in the NGC 300 found in the regions of potential stellar-complexesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PGF2001]Name (AS NNN)meta.id;meta.maincharm_[PGF2001][abcde] Multiplicity index on Name (in table3.dat only)meta.code.multipcharRA2000Right ascension (2000)pos.eq.ra;meta.mainDE2000Declination (2000)pos.eq.dec;meta.mainNblueNumber of blue stars belonging to the groupmeta.numberintSizeSize of the group (in {mu}rad=~0.2arcsec)uradphys.angSize;srcintSizepcSize of the group (in pc)pcphys.sizeintNote[*] * more detailed cross-identification given in table3.datmeta.notecharCross-IDCross-identification (1)meta.id.crosscharJ/A+A/371/497/table1OB association candidates in NGC 300recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PGF2001]Name (AS NNN)meta.id;meta.maincharm_[PGF2001][abcde] Multiplicity index on Name (in table3.dat only)meta.code.multipcharRA2000Right ascension (2000)pos.eq.ra;meta.mainDE2000Declination (2000)pos.eq.dec;meta.mainNblueNumber of blue stars belonging to the groupmeta.numberintSizeSize of the group (in {mu}rad=~0.2arcsec)uradphys.angSize;srcintSizepcSize of the group (in pc)pcphys.sizeintNote[*] * more detailed cross-identification given in table3.datmeta.notecharCross-IDCross-identification (1)meta.id.crosschar