J/other/NatAs/2.ivo://CDS.VizieR/J/other/NatAs/2.478CDSMotte F.Nony T.Louvet F.Marsh K.A.Bontemps S.Whitworth A.P.,Men'shchikov A.Nguyen Luong Q.Csengeri T.Maury A.J.Gusdorf A.,Chapillon E.Konyves V.Schilke P.Duarte-Cabral A.Didelon P.,Gaudel M.2024-06-20T14:54:39Z2023-10-03T14:25:26ZCDS support team

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

cds-question@unistra.frmolecular-cloudsradio-sourcesgalaxy-classification-systemsUnderstanding the processes that determine the stellar initial mass function (IMF) is a critical unsolved problem, with profound implications for many areas of astrophysics. In molecular clouds, stars are formed in cores-gas condensations sufficiently dense that gravitational collapse converts a large fraction of their mass into a star or small clutch of stars. In nearby star-formation regions, the core mass function (CMF) is strikingly similar to the IMF, suggesting that the shape of the IMF may simply be inherited from the CMF. Here, we present 1.3mm observations, obtained with the Atacama Large Millimeter/submillimeter Array telescope, of the active star-formation region W43-MM1, which may be more representative of the Galactic-arm regions where most stars form. The unprecedented resolution of these observations reveals a statistically robust CMF at high masses, with a slope that is markedly shallower than the IMF. This seriously challenges our understanding of the origin of the IMF.2018NatAs...2..478Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NatAs/2.478CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NatAs/2.478https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NatAs/2.478http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NatAs/2.478https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/NatAs/2.478https://vizier.iucaa.in/viz-bin/votable?-source=J/other/NatAs/2.478http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/NatAs/2.478GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/NatAs/2.478/tables1 (Characteristics of the cores detected at 1.3mm in W43-MM1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/2.478/tables1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/2.478/tables1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/2.478/tables1?GETtext/xml+votable180.050000true281.9459167-1.90746110.0055555555555555566/30262https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/NatAs/2.478?format=asciiOpticalRadiodefaultJ/other/NatAs/2.478/tables1Characteristics of the cores detected at 1.3mm in W43-MM1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSize1Sizearcsecphys.angSizefloatSize2Sizearcsecphys.angSizefloatFWHMFWHMAUphys.angSizeintSigniSignificance level of getsources core extractionstat.fit.goodness;phys.angSizefloatClineLine contamination ratio (1)%stat.fit.paramintSpeakPeak flux at 1.3mm corrected for line contamination and local backgroundmJy/beamphot.flux.density;em.mm.200-400GHzfloate_Speakrms uncertainty on SpeakmJy/beamstat.errorfloatSintTotal integrated flux at 1.3mm corrected for line contamination and local backgroundmJyphot.flux.density;em.mm.200-400GHzfloate_Sintrms uncertainty on SintmJystat.errorfloatTdustMean dust temperatureKphys.temperatureinte_Tdustrms uncertainty on TdustKstat.errorintMcoreCore masssolMassphys.massfloate_Mcorerms uncertainty on McoresolMassstat.errorfloatnH2Mean density (2)1e+07cm**-3phys.densityfloate_nH2rms uncertainty on nH21e+07cm**-3stat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar