J/A+A/687/A217ivo://CDS.VizieR/J/A+A/687/A217doi:10.26093/cds/vizier.36870217CDSDell'Ova P.Motte F.Gusdorf A.Pouteau Y.Men'shchikov A.,Diaz-Gonzalez D.Galvan-Madrid R.Lesaffre P.Didelon P.Stutz A.M.,Towner A.P.M.Marsh K.Whitworth A.Armante M.Bonfand M.Nony T.,Valeille-Manet M.Bontemps S.Csengeri T.Cunningham N.Ginsburg A.,Louvet F.Alvarez-Gutierrez R.H.Brouillet N.Salinas J.Sanhueza P.,Nakamura F.Nguyen Luong Q.Baug T.Fernandez-Lopez M.Liu H.-L.,Olguin F.2026-04-07T20:02:36Z2024-07-17T07:42:59ZCDS support team

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

cds-question@unistra.frmolecular-cloudsh-ii-regionsinterstellar-mediummillimeter-astronomysubmillimeter-astronomyA crucial aspect in addressing the challenge of measuring the core mass function (CMF), that is pivotal for comprehending the origin of the initial mass function (IMF), lies in constraining the temperatures of the cores. We aim to measure the luminosity, mass, column density and dust temperature of star-forming regions imaged by the ALMA-IMF large program. These fields were chosen to encompass early evolutionary stages of massive protoclusters. High angular resolution mapping is required to capture the properties of protostellar and pre-stellar cores within these regions, and to effectively separate them from larger features, such as dusty filaments. We employed the point process mapping (PPMAP) technique, enabling us to perform spectral energy distribution fitting of far-infrared and submillimeter observations across the 15 ALMA-IMF fields, at an unmatched 2.5'' angular resolution. By combining the modified blackbody model with near-infrared data, we derived bolometric luminosity maps. We estimated the errors impacting values of each pixel in the temperature, column density, and luminosity maps. Subsequently, we employed the extraction algorithm getsf on the luminosity maps in order to detect luminosity peaks and measure their associated masses. We obtained high-resolution constraints on the luminosity, dust temperature, and mass of protoclusters, that are in agreement with previously reported measurements made at a coarser angular resolution. We find that the luminosity-to-mass ratio correlates with the evolutionary stage of the studied regions, albeit with intra-region variability. We compiled a PPMAP source catalog of 313 luminosity peaks using getsf on the derived bolometric luminosity maps. The PPMAP source catalog provides constraints on the mass and luminosity of protostars and cores, although one source may encompass several objects. Finally, we compare the estimated luminosity-to-mass ratio of PPMAP sources with evolutionary tracks and discuss the limitations imposed by the 2.5'' beam.2024A&A...687A.217Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/687/A217CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/662/A9 : 15 dense molecular cloud regions ALMA images (Ginsburg+, 2022)J/A+A/664/A26 : W43-MM2+MM3 ministarburst ALMA data (Pouteau+, 2022)J/A+A/674/A75 : W43-MM1 and W43-MM2+MM3 ALMA datacubes (Nony+, 2023)J/ApJS/269/55 : ALMA-IMF VIII. Dust-dominated structures (Diaz-Gonzalez+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/687/A217https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/687/A217http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/687/A217https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/687/A217https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/687/A217http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/687/A217GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/687/A217/list (List of fits maps)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/687/A217/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/687/A217/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/687/A217/list?GETtext/xml+votable180.050000true271.58787-21.621540.0055555555555555566/28919 29091 29101 30262 30694 41812 42172 42224 42230 42451 42455 42496https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/687/A217?format=asciiMillimeterdefaultJ/A+A/687/A217/listList of fits mapsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar