J/AJ/133/1795ivo://CDS.VizieR/J/AJ/133/1795doi:10.26093/cds/vizier.51331795CDSGahm G.F.Grenman T.Fredriksson S.Kristen H.2017-10-03T05:12:50Z2009-06-21T15:17:07ZCDS support team

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

cds-question@unistra.frh-ii-regionsinterstellar-cloudsgalaxy-classification-systemsSome HII regions surrounding young stellar clusters contain tiny dusty clouds, which on photos look like dark spots or teardrops against a background of nebular emission. From our collection of H{alpha} images of 10 HII regions gathered at the Nordic Optical Telescope, we found 173 such clouds, which we call "globulettes", since they are much smaller than normal globules and form a distinct class of objects. Many globulettes are quite isolated and located far from the molecular shells and elephant trunks associated with the regions. Others are attached to the trunks (or shells), suggesting that globulettes may form as a consequence of erosion of these larger structures. None of our objects appear to contain stellar objects. The globulettes were measured for position, dimension, and orientation, and we find that most objects are smaller than 10kAU.2007AJ....133.1795Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/133/1795CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/133/1795https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/133/1795http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/133/1795https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/133/1795https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/133/1795http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/133/1795GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/133/1795/table2 (List of globulettes with central positions, dimensions, position angle, mean mass and density)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/133/1795/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/133/1795/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/133/1795/table2?GETtext/xml+votable180.050000true0.592416767.12402780.0055555555555555566/3307 3310 3755 14353 22249 22251 22252 22254https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/133/1795?format=asciiOpticaldefaultJ/AJ/133/1795/table2List of globulettes with central positions, dimensions, position angle, mean mass and densityrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHII region identificationmeta.id.parentcharGlobGlobulette identification number (1)meta.id;meta.mainintn_GlobMorphological note on Glob (2)meta.notecharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainMajAxisSemi-major axisarcsecphys.angSize.smajAxisfloatMinAxisSemi-minor axisarcsecphys.angSize.sminAxisfloatRadCharacteristic radius (mean of the semi-axes)(1000AU)phys.angSize;srcfloatPA[-90/90]? Position angle of elongated objectsdegpos.posAngfloatnullablef_PA[*] when PA not well defined (round object)meta.codecharMassMean mass in Jupiter masses(1.898187x10+27kg)phys.massfloatrhoDensity1e-20g.cm**-3phys.densityfloatSimbadSimbad column added by the CDSmeta.refchar