J/A+A/699/A346ivo://CDS.VizieR/J/A+A/699/A346doi:10.26093/cds/vizier.36990346CDSSalvestrini F.Bianchi S.Corbelli E.2026-01-20T12:12:02Z2025-07-23T08:01:32ZCDS support team

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

cds-question@unistra.frgalaxiesinterstellar-mediumMolecular gas is the key ingredient of the star formation cycle, and tracing its dependencies on other galaxy properties is essential for understanding galaxy evolution. In this work, we explore the relation between the different phases of the interstellar medium (ISM), namely molecular gas, atomic gas, and dust, and galaxy properties using a sample of nearby late-type galaxies. To this goal, we collect CO maps for 121 galaxies from the DustPedia project, ensuring an accurate determination of MH2, the global molecular gas mass. We investigate which scaling relations provide the best description of MH2, based on the strength of the correlation and its intrinsic dispersion. Commonly used correlations between MH2 and star formation rate (SFR) and stellar mass (M*) are affected by large scatter, which accounts for galaxies that are experiencing quenching of their star formation activity. This issue can be partially mitigated by considering a "fundamental plane" of star formation, fitting together MH2, Mstar, and SFR. We confirm previous results from the DustPedia collaboration that the total gas mass has the tightest connection with the dust mass and that the molecular component also establishes a good correlation with dust. Although dust grains are necessary for the formation of hydrogen molecules, the strength of gravitational potential driven by the stellar component plays a key role in driving density enhancements and the atomic-to-molecular phase transition. Eventually, we investigated the correlations between ISM components and monochromatic luminosities at different wavelengths: we proposed mid and far-IR luminosities as reliable proxies of L'CO for sources lacking dedicated millimeter observations. Luminosities in mid-IR photometric bands collecting PAH emission can be used to trace molecular gas and dust masses.2025A&A...699A.346Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/699/A346CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/257/21 : VERTICO: the Virgo EnviRonment Traced In CO surveyJ/A+A/620/A112 : Template SED of DustPedia galaxies (Bianchi+, 2018)J/A+A/609/A37 : 875 nearby galaxies multiwavelength photometry (Clark+, 2018)J/A+A/622/A132 : Dust emission profiles of DustPedia galaxies (Mosenkov+, 2019)J/A+A/623/A5 : DustPedia metallicities and HI masses (De Vis+, 2019)J/A+A/649/A18 : Nearby galaxy perspective on dust evolution (Galliano+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/699/A346https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/699/A346http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/699/A346https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/699/A346https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/699/A346http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/699/A346GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/699/A346/tablea1 (Properties of the 121 galaxies analyzed in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/699/A346/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/699/A346/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/699/A346/tablea1?GETtext/xml+votable180.050000true213.291275-65.33901940.0055555555555555566/2320 2409 3042 3389 5469 5492 5629 5715 5751 5799 5976 6042 7132 7241 7424 7602 7604 7606 7624 7659 8106 10475 10739 10761 10841 10856 10901 10927 10977 10979 10990 11006 11375 11434 11961 13522 15592 16479 17340 17594 17754 18212 18398 18809 20023 25599 25888 25890 25946 26090 26175 26271 26323 26331 26336 26343 26351 26365 26472 27030 27514 27603 27654 27728 27731 27738 27763 27766-27767 27773 27857 27860-27862 27914 27917-27918 27937 27945 27947 27955 28033 28035 28039 28054 28123 28167 28184 28213 28234 28299 28348 28496 28631 28651 29795 34495 34511 34531 34533 34535 34537-34540 34544 35691 40410 41586 43233https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/699/A346?format=asciidefaultJ/A+A/699/A346/tablea1Properties of the 121 galaxies analyzed in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharSampleSurvey that presented H_2_ data as in Table 1 (1)meta.idcharHTHubble Typemeta.notefloatlogMstarlog of stellar masslog(solMass)phys.massfloate_logMstarError on log of stellar masslog(solMass)stat.errorfloatlogSFRlog of star formation ratelog(solMass.yr**-1)phys.SFRfloate_logSFRError on log of SFRlog(solMass.yr**-1)stat.error;phys.SFRfloatlogMdustlog of dust masslog(solMass)phys.massfloate_logMdustError on log of dust masslog(solMass)stat.errorfloatl_logMH2Limit flag on logMH2meta.code.errorcharlogMH2log of H2 gas mass (2)log(solMass)phys.massfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.maine_logMH2? Error on log of H2 gas masslog(solMass)stat.errorfloatnullablel_logMHIR25Limit flag on logMHIR25meta.code.errorcharlogMHIR25? log of HI gas mass within R25log(solMass)phys.massfloatnullablee_logMHIR25? Error on log of HI gas mass within R25log(solMass)stat.errorfloatnullablel_logMHItotLimit flag on logMHItotmeta.code.errorcharlogMHItot? log of total HI gas masslog(solMass)phys.massfloatnullablee_logMHItot? Error on log of total HI gas masslog(solMass)stat.errorfloatnullable