J/MNRAS/518/286ivo://CDS.VizieR/J/MNRAS/518/286CDSLi Z.Wisnioski E.Mendel J.T.Krumholz M.R.Kewley L.J.,Lopez-coba C.Sanchez S.F.Anderson J.P.Galbany L.2026-03-05T06:40:25Z2026-03-05T06:56:07ZCDS support team

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

cds-question@unistra.frgalaxiesinterstellar-mediumspectroscopyvisible-astronomyastrometrygalaxy-radiistar-forming-regionsWe analyse the spatial statistics of the 2D gas-phase oxygen abundance distributions in a sample of 219 local galaxies. We introduce a new adaptive binning technique to enhance the signal-to-noise ratio of weak lines, which we use to produce well-filled metallicity maps for these galaxies. We show that the two-point correlation functions computed from the metallicity distributions after removing radial gradients are in most cases well-described by a simple injection-diffusion model. Fitting the data to this model yields the correlation length lcorr, which describes the characteristic interstellar medium (ISM) mixing length-scale. We find typical correlation lengths lcorr ~ 1 kpc, with a strong correlation between lcorr and stellar mass, star formation rate (SFR), and effective radius, and a weak correlation with Hubble type. Two galaxies in the sample show significantly larger lcorr, and both prove to be interacting or merging systems. We show that the trend of lcorr with SFR can be reproduced by a simple transport + feedback model of ISM turbulence at high SFR, and plausibly also at low SFR if dwarf galaxy winds have large mass-loading factors. We also report the first measurements of the injection width that describes the initial radii over which supernova remnants deposit metals. Inside this radius the metallicity correlation function is not purely the product of a competition between injection and diffusion. We show that this size scale is generally smaller than 60 pc.2023MNRAS.518..286Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/518/286CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/594/A36 : CALIFA Survey DR3 list of galaxies (Sanchez+, 2016)J/ApJ/903/52 : MaNGA; parameters of 668 galaxies (Sanchez-Menguiano+, 2020)J/ApJ/887/80 : Gas phase oxygen abundances for HII regions (Kreckel+, 2019)J/ApJS/262/36 : SDSS-IV MaNGA: pyPipe3D data for 10000 galaxies (Sanchez+,2022)J/ApJS/217/12 : S7 observations with WiFeS of active galaxies (Dopita+, 2015)J/AJ/159/167 : AMUSING++ nearby galaxy compilation. I. SampleJ/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/518/286https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/518/286http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/518/286https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/518/286https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/518/286http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/518/286GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/518/286/table1 (*Global properties of AMUSING++ nearby galaxy sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/518/286/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/518/286/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/518/286/table1?GETtext/xml+votable180.050000true125.63312925.95188530.0055555555555555566/11 1044 4178 4369 4562 5129 5190 5200 8195 8345 8509 9099 12758 16434 16531 17032 17152 17236-17237 17340 17410 17492 17567 17598 17671 17727 17754 17767 17870 18019 18049 18061 18246 18300 18398 18432 18607 18677 18854 19130 19283 19490 19614 19619 19994 20356 20716 20875 21146 21207 21256 21982 22632 22704 22943 23077 23182 23356 24926 24960 25141 25181 25229 25336 25438 25491 25599 25722 25763 25769 25775 25788 25790 25839 25889 25960 25997 26161 26234 26338 26432 26472 26500 26584 26624 26732 27118 27243 27348 27514 27537 27564 27656 27736 27749 27955 28040 28168 28346 29766 30027 30160 30197 31315 31341 31352 31475 31868 31974 31983 33241 33650 33780 33958 33971 33986 34352 34404 34505 34531 34533 34654 34764 35067 35112 35179 35271 35365 35447 35746 35783 35788 35934 35956 36058 36287 36391 36473 36729 36750 36775 36785 36789 36841 36919 37369 37399 37585 38139 38268 38313 38664 38771 38786 38797 38841 39025 40234 40393 40921 41065 43447 43671 43712 43839 43886 43948 43953 43963 44005 44017 44267 44359 45418 45444 45693 45802 45845 45905 45984 46004 46042 46104 46130 46375 46399 46439 46491 46525 46636 46642 46689 46709 46811 46882 46903 47027 47217 47235 47255 47405 47420 47456 47529 48181 48213 48262 48290 48464 48665 48736https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/518/286?format=asciiOpticaldefaultJ/MNRAS/518/286/table1*Global properties of AMUSING++ nearby galaxy samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAMUSING++ name (name)meta.id;meta.maincharPAPosition angle (PA)degpos.posAngintb/aAxial ratio (b2a)phys.angSize;arith.ratiofloatDDistance (D)Mpcpos.distancefloatReThe r-band effective radius (Re)kpcphys.size.radiusfloatPSFFWHM of physical PSF (PSF_pc)pcphys.angSizeintResMedMedian spatial resolution of the binned maps (res_med_pc)pcpos.angResolutionintlog(M*)Stellar mass (logMstar)log(solMass)phys.mass;meta.modelledfloate_log(M*)Error of log (M*) (error_logMstar)log(solMass)stat.errorfloatlog(SFR)