J/PASJ/53/1081ivo://CDS.VizieR/J/PASJ/53/1081doi:10.26093/cds/vizier/bj-1n-11sCDSTachihara K.Toyoda S.Onishi T.Mizuno A.Fukui Y.Neuhaeuser R.2026-03-17T20:04:04Z2007-06-30T16:37:42ZCDS support team

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

cds-question@unistra.frmolecular-cloudsco-line-emissionThe Lupus star-forming region has been surveyed for molecular clouds in ^12^CO with the NANTEN radio telescope, and a cloud mass of 1.7x10^4^M_{sun}_ has been revealed. We were able to detect 105 molecular clouds, most of which are relatively small and of low mass. The members of the Sco OB 2 association and the X-ray detected pre-main-sequence stars (PMSs) are distributed all around this region. The OB stars and the molecular clouds show exclusive distributions. Large fractions of the PMSs are located away from the molecular clouds, and are thus isolated. The origin of the isolated PMSs is discussed. About 40% of the PMSs have candidates of their parent clouds less massive than 20M_{sun}_ within 4pc, which suggests in-situ star formation in the small clouds and their rapid dissipation. The separations from the PMSs to the clouds are typically larger than those in the Chamaeleon region, probably because of coexisting OB stars. From the cloud structures and the distributions of the OB stars, PMSs, and H I expanding shell, it is suggested that the molecular clouds have been effectively dissipated by the OB stars and a shock wave, which may also have triggered star formation in Lupus and the {rho} Oph clouds.2001PASJ...53.1081Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASJ/53/1081CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/PASJ/53/971 : CO catalog of LMC molecular clouds (Mizuno+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASJ/53/1081https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASJ/53/1081http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASJ/53/1081https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASJ/53/1081https://vizier.iucaa.in/viz-bin/votable?-source=J/PASJ/53/1081http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASJ/53/1081GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PASJ/53/1081/table1 (Observed properties of the clouds)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASJ/53/1081/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/53/1081/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/53/1081/table1?GETtext/xml+votable180.050000true224.696578-47.2607630.0055555555555555565/10736 11074 11081 6/41968-41969 42488 42490 42599 42604 42621 42697 42702 42704 42706-42707 42709-42710 42713 42718 42728-42730 42732 42735 42744 42759 42769 42771 42775 42782 42784 42791 42803 42805 42809 42811 42823 42827-42828 42848 42859 42862 42883 42890 42905 42908 42910-42911 42932 42948 42954 44061 44100 44102 44104-44105 44107 44109 44118 44123 44125-44127 44132-44133 44137 44140-44141 44148-44149 44302 44321-44322 44336https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PASJ/53/1081?format=asciiRadiodefaultJ/PASJ/53/1081/table1Observed properties of the cloudsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TTO2001]Sequential numbermeta.recordintprimaryNameCloud name (lll.ll+bb.bb)meta.idcharn_Name[a-d] Previously identified clouds (1)meta.notecharGLONGalactic longitude (2)degpos.galactic.lonGLATGalactic latitude (2)degpos.galactic.latfloatRA1950Right ascension (1950) (2)pos.eq.ra;meta.mainDE1950Declination (1950) (2)pos.eq.dec;meta.mainTR*^12^CO Absolute peak antenna temperature (3)Kphot.antennaTemp;em.line.CO;stat.maxfloatFWHM^12^CO FWHM line-width (3)km/sspect.line.widthfloatVlsr^12^CO centre velocity with respect to LSR (3)km/sphys.veloc;pos.lsrfloatW(CO)^12^CO integrated intensities at the peak positions of the CO clouds (3)K.km/sspect.line.intensityfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/PASJ/53/1081/table2Physical properties of the cloudsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TTO2001]Sequential namemeta.id;meta.mainintNameCloud name (lll.ll+bb.bb)meta.idcharN(H2)H_2_ column density1e+20cm**-2phys.columnDensityfloatMassMasssolMassphys.massfloatRadRadiuspcphys.size.radiusfloatn(H2)Average number density100cm**-3meta.idfloat