J/MNRAS/496/2790ivo://CDS.VizieR/J/MNRAS/496/2790doi:10.26093/cds/vizier.74962790CDSLiu T.Evans N.J.Kim K.-T.Goldsmith P.F.Liu S.-Y.Zhang Q.,Tatematsu K.Wang K.Juvela M.Bronfman L.Cunningham M.R.Garay G.,Hirota T.Lee J.-E.Kang S.-J.Li D.Li P.-S.Mardones D.Qin S.-L.,Ristorcelli I.Tej A.Toth L.V.Wu J.-W.Wu Y.-F.Yi H.-W.Yun H.-S.,Liu H.-L.Peng Y.-P.Li J.Li S.-H.Lee C.W.Shen Z.-Q.Baug T.,Wang J.-Z.Zhang Y.Issac N.Zhu F.-Y.Luo Q.-Y.Soam A.Liu X.-C.,Xu F.-W.Wang Y.Zhang C.Ren Z.Zhang C.2025-05-22T20:15:56Z2023-09-28T14:57:20ZCDS support team

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

cds-question@unistra.frstar-forming-regionsh-ii-regionsmolecular-cloudsinterstellar-mediummilky-way-galaxyinfrared-astronomyThe ATOMS, standing for ALMA Three-millimeter Observations of Massive Star-forming regions, survey has observed 146 active star-forming regions with ALMA band 3, aiming to systematically investigate the spatial distribution of various dense gas tracers in a large sample of Galactic massive clumps, to study the roles of stellar feedback in star formation, and to characterize filamentary structures inside massive clumps. In this work, the observations, data analysis, and example science of the ATOMS survey are presented, using a case study for the G9.62+0.19 complex. Toward this source, some transitions, commonly assumed to trace dense gas, including CS J=2-1, HCO^+^J=1-0, and HCN J=1-0, are found to show extended gas emission in low-density regions within the clump; less than 25 per cent of their emission is from dense cores. SO, CH_3_OH, H^13^CN, and HC_3_N show similar morphologies in their spatial distributions and reveal well the dense cores. Widespread narrow SiO emission is present (over ~1pc), which may be caused by slow shocks from large-scale colliding flows or HII regions. Stellar feedback from an expanding HII region has greatly reshaped the natal clump, significantly changed the spatial distribution of gas, and may also account for the sequential high-mass star formation in the G9.62+0.19 complex. The ATOMS survey data can be jointly analysed with other survey data, e.g. MALT90, Orion B, EMPIRE, ALMA_IMF, and ALMAGAL, to deepen our understandings of 'dense gas' star formation scaling relations and massive protocluster formation.2020MNRAS.496.2790Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/496/2790CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/115/81 : A CS(2-1) survey of UC HII regions (Bronfman+, 1996)J/A+A/426/97 : SIMBA survey. 1.2-mm/IRAS sources (Faundez+, 2004)J/MNRAS/473/1059 : Complete sample of Galactic clump propertieshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/496/2790https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/496/2790http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/496/2790https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/496/2790https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/496/2790http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/496/2790GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/496/2790/tablea1 (Basic parameters of the targets in the ATOMS survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/496/2790/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/496/2790/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/496/2790/tablea1?GETtext/xml+votable180.050000true122.3849583-36.0870.0055555555555555566/28808 28830-28831 28912-28913 28918 29090 29092 29094-29097 29101 29103 29113-29114 29461 29505 29509-29510 29529 29535 30218 30241 30243 30258-30259 30262-30263 30268-30269 30312 30316 30318 30405 30425 30616 30618 37849-37850 37897 37900 38019 39246 39248 39251 39396 41597 41653-41655 41675 41677 41683 41685 41688 41697 41759 41763 41767 41778 41804-41805 41811 41813-41814 41817 41820 42158-42159 42169 42171-42172 42207 42211 42214-42215 42224-42226 42229 42376 42379 42381 42383 42387 42390 42396 42398 42436 42445 42447 42449-42451 42454-42456 42497-42498 42512 43010 43013 43021 43026https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/496/2790?format=asciiInfrareddefaultJ/MNRAS/496/2790/tablea1Basic parameters of the targets in the ATOMS surveySimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/146] Internal object identifiermeta.idintNameIRAS source identifier (IHHMMm+DDMM)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVLSRVelocity in the local standard of restkm/sphys.veloc;pos.lsrfloatDistDistancekpcpos.distancefloatRGCGalactocentric distancekpcpos.distance;pos.galactocentricfloatRadSource radiuspcphys.size.radiusfloatTdustDust temperatureKphys.temperaturefloatlogLbolLogarithm of the bolometric luminositylog(solLum)phys.luminosityfloatlogMclumpLogarithm of the clump's masslog(solMass)phys.massfloatRefReferences (1)meta.refchar