J/A+A/696/A151ivo://CDS.VizieR/J/A+A/696/A151doi:10.26093/cds/vizier.36960151CDSColetta A.Molinari S.Schisano E.Traficante A.Elia D.,Benedettini M.Mininni C.Soler J.D.Sanchez-Monge A.Schilke P.,Battersby C.Fuller G.A.Beuther H.Zhang Q.Beltran M.T.Jones B.,Klessen R.S.Walch S.Fontani F.Avison A.Brogan C.L.Clarke S.D.,Hatchfield P.Hennebelle P.Ho P.T.P.Hunter T.R.Johnston K.G.,Klaassen P.D.Koch P.M.Kuiper R.Lis D.C.Liu T.Lumsden S.L.,Maruccia Y.Moeller T.Moscadelli L.Nucara A.Rigby A.J.Rygl K.L.J.,Sanhueza P.van der Tak F.Wells M.R.A.Wyrowski F.De Angelis F.,Liu S.Ahmadi A.Bronfman L.Liu S.-Y.Su Y.-N.Tang Y.Testi L.,Zinnecker H.2026-05-07T20:02:45Z2025-04-15T09:35:45ZCDS support team

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

cds-question@unistra.frinterstellar-mediuminterferometrymillimeter-astronomyphotometrysubmillimeter-astronomystellar-radiistellar-massesThe physical mechanisms behind the fragmentation of high-mass dense clumps into compact star-forming cores and the properties of these cores are fundamental topics that are heavily investigated in current astrophysical research. The ALMAGAL survey provides the opportunity to study this process at an unprecedented level of detail and statistical significance, featuring high-angular resolution 1.38mm ALMA observations of 1013 massive dense clumps at various Galactic locations. These clumps cover a wide range of distances (~2-8kpc), masses (~10^2^-10^4^M_{sun}_), surface densities (0.1-10g/cm^-2^), and evolutionary stages (luminosity over mass ratio indicator of ~0.05<L/M<450L_{sun}_/M_{sun}_). Here, we present the catalog of compact sources obtained with the CuTEx algorithm from continuum images of the full ALMAGAL clump sample combining ACA-7m and 12m ALMA arrays, reaching a uniform high median spatial resolution of ~1400au (down to ~800au). We characterize and discuss the revealed fragmentation properties and the photometric and estimated physical parameters of the core population. The ALMAGAL compact source catalog includes 6348 cores detected in 844 clumps (83% of the total), with a number of cores per clump between 1 and 49 (median of 5). The estimated core diameters are mostly within ~800-3000au (median of 1700au). We assigned core temperatures based on the L/M of the hosting clump, and obtained core masses from 0.002 to 345M_{sun}_ (complete above 0.23M_{sun}_), exhibiting a good correlation with the core radii (M~R^2.6). We evaluated the variation in the core mass function (CMF) with evolution as traced by the clump L/M, finding a clear, robust shift and change in slope among CMFs within subsamples at different stages. This finding suggests that the CMF shape is not constant throughout the star formation process, but rather it builds (and flattens) with evolution, with higher core masses reached at later stages. We found that all cores within a clump grow in mass on average with evolution, while a population of possibly newly formed lower-mass cores is present throughout. The number of cores increases with the core masses, at least until the most massive core reaches ~10M_{sun}_. More generally, our results favor a clump-fed scenario for high-mass star formation, in which cores form as low-mass seeds, and then gain mass while further fragmentation occurs in the clump.2025A&A...696A.151Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/696/A151CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/690/A185 : Dynamical accretion flows. ALMAGAL (Wells+, 2024)J/A+A/696/A149 : ALMAGAL. I. Target clumps properties (Molinari+, 2025)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/696/A151https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/696/A151http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/696/A151https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/696/A151https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/696/A151http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/696/A151GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/696/A151/cores (Core coordinates and photometric parameters (Table 3) and physical properties (Table 7) (updated version, 07-May-2026))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/696/A151/cores?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/696/A151/cores?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/696/A151/cores?GETtext/xml+votable180.050000true277.80605-8.909350.0055555555555555565/7278 7377 7383 7564 9341 10542 10556 10624 6/20831 21504 21671 22038 22041 22045 29091 29094 29097 29099-29101 29103 29116 29118-29119 29162 29461 29463 29504-29505 29522 29526 29528-29529 30218-30219 30223 30241 30244-30245 30247 30260 30262-30263 30268-30269 30312 37333 37340-37341 37343 37372 37746 37752-37753 37842 37848 37850 37897 37902 37923-37924 37926 37929-37931 37934 38016 38018-38019 38024 38026 39246 39268 39270 39276 39386 39404 39408 39768 39803 39889 39934 40618 41598 41653 41655 41660-41661 41671 41673 41675-41678 41681-41684 41688 41697-41698 41766-41767 41770 41772 41777-41778 41780-41782 41799 41804-41805 41809 41811 41813-41817 41820-41821 41824-41825 41856 42159 42172-42174 42207 42210-42211 42213-42217 42220 42228-42230 42376 42378-42379 42381-42383 42387 42390-42393 42396-42398 42400 42435-42438 42440-42441 42444-42445 42500-42502 42512 43013-43015 43019-43021 43024 43026 430401.4378570967568383e-22 1.4378570967568383e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/696/A151?format=asciiMillimeterdefaultJ/A+A/696/A151/coresCore coordinates and photometric parameters (Table 3) and physical properties (Table 7) (updated version, 07-May-2026)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameALMAGAL clump name, AGLLL.llll+B.bbbbmeta.id.part;meta.maincharSeqOrdinal core id within the clumpmeta.id.part;meta.mainintRAJ2000Right ascension (FK5, J2000)degpos.eq.ra;meta.mainDEJ2000Declination (FK5, J2000)degpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleFpeakBackground-subtracted peak flux at 1.38mmmJy/beamphot.flux.density;em.mm.200-400GHzfloatFbkgBackground flux value at 1.38mm at flux peak positionmJy/beaminstr.backgroundfloatDiam1FWHM of the fitted source ellipse (axis 1)arcsecphys.angSize.smajAxisfloatDiam2FWHM of the fitted source ellipse (axis 2)arcsecphys.angSize.sminAxisfloatPAsOrientation (position angle) of the sourcedegpos.posAngintFintIntegrated flux at 1.38mmmJyphot.flux.density;em.mm.200-400GHzfloatMajDiamMajor axis of the map beamarcsecphys.angSize;instr.beamfloatMinDiamMinor axis of the map beamarcsecphys.angSize;instr.beamfloatPAbBeam position angledegpos.posAng;instr.beamintFlag1[Y-N] Flag for radio emission within the core (1)meta.code.errorcharFlag2[Y-N] Flag for radio emission within the clump (1)meta.code.errorcharDiamCore physical diameterAUphys.angSizeintL/MClump evolutionary indicatorsolMass/solLumphys.composition.massLightRatiofloatTcoreCore temperature (used for Mcore)Kphys.temperatureintMcoreCore masssolMassphys.massfloatsurfdcoreCore average mass surface densityg.cm**-2phys.density;stat.meanfloatnH2Core average volume density1e+07cm**-3phys.densityfloat