J/MNRAS/506/5494ivo://CDS.VizieR/J/MNRAS/506/5494doi:10.26093/cds/vizier.75065494CDSPoulain M.Marleau F.Habas R.Duc P.A.Sanchez-Janssen R.,Durrell P.R.Paudel S.Ahad S.L.Chougule A.Mueller O.Lim S.,Bilek M.Fensch J.2025-10-29T20:17:30Z2021-08-17T15:58:20ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsvisible-astronomyphotometryWe present a photometric study of the dwarf galaxy population in the low to moderate density environments of the MATLAS (Mass Assembly of early-Type gaLAxies with their fine Structures) deep imaging survey. The sample consists of 2210 dwarfs, including 508 nucleated. We define a nucleus as a compact source that is close to the galaxy photocentre (within 0.5Re) which is also the brightest such source within the galaxy's effective radius. The morphological analysis is performed using a 2D surface brightness profile modelling on the g-band images of both the galaxies and nuclei. Our study reveals that, for similar luminosities, the MATLAS dwarfs show ranges in the distribution of structural properties comparable to cluster (Virgo and Fornax) dwarfs and a range of sizes comparable to the Local Group and Local Volume dwarfs. Colour measurements using the r- and i-band images indicate that the dwarfs in low and moderate density environments are as red as cluster dwarfs on average. The observed similarities between dwarf ellipticals in vastly different environments imply that dEs are not uniquely the product of morphological transformation due to ram-pressure stripping and galaxy harassment in high density environments. We measure that the dwarf nuclei are located predominantly in massive, bright and round dwarfs and observe fewer nuclei in dwarfs with a faint centre and a small size. The colour of the galaxy nucleus shows no clear relation to the colour of the dwarf, in agreement with the migration and wet migration nucleus formation scenarios. The catalogues of the MATLAS dwarfs photometric and structural properties are provided.2021MNRAS.506.5494Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/506/5494CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/446/120 : ATLAS3D project. XXIX (Duc+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/506/5494https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/506/5494http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/506/5494https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/506/5494https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/506/5494http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/506/5494GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/506/5494/table1 (Structural and photometric properties of the MATLAS dwarfs (from erratum, 2025MNRAS.544..372P, on 29-Oct-2025))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/506/5494/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/506/5494/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/506/5494/table1?GETtext/xml+votable180.050000true18.2998-2.07920.005555555555555556Cone search capability for table J/MNRAS/506/5494/table4 (Properties of the MATLAS nuclei)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/506/5494/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/506/5494/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/506/5494/table4?GETtext/xml+votable180.050000true18.7565-1.48060.0055555555555555565/1141 1207 1443 1521 1525 1856 2048 2659 4581 5794 7055 7863 6/520 658 664-665 691 696-697 700 2144-2145 2148 2374-2375 2380 4438-4439 4447 4469 4797 4805 4807 4816 4818 4834 4840 4842 4868-4869 4930 4936-4937 4989 4991 5015 5021 5073 5075 5078 5124-5125 5130 5132 5134 5152 5179-5180 5182-5183 5193 5196 5198 5288 5395 5398 5407 5429 5431 5472 5474 5599 5621 5672 5723 5745 5973 5975 5981 5999 6009-6012 6014 6047 6069 6083 6089-6090 6092-6093 6095 6097 6099 6105 6108-6109 6160-6162 7212 7214-7215 7287 7293 7353-7355 7371 7374 7379 7384-7385 7431 7438 7440 7442 7458 7460 7554 7560 8196-8198 9186 10454 10501 10512 10522-10523 10544-10545 10551 10557 10594 10714 10720 10722 10736 10739 10742 10745 10923-10924 10926-10927 10991 11026-11027 11178-11179 11243 11246-11247 11371 11433-11435 11438 11442-11443 11446 11449 11457 11460 11776-11777 11789 11791 11800 11802 11813 11824 13331 13336-13337 13401 13403-13404 14970 15045 15056 15204-15206 17744-17745 17760-17761 17763 17989 17991 18000 18002 18208-18209 18269 18321 18754-18755 18758 18761 18763 18766 19442 19448-19449 20014-20015 20070-20071 20077 20101 22654 22740-22741 22743 22914 23180 23182 25871 25892-25893 25906-25907 25978-25979 25982 26053 26055 26061 26065-26066 26072 26125-26126 26136 26148-26149 26161 26163 26166-26167 26172-26173 26210 26216 26306-26307 26310 26313 26315-26318 26361 26363-26364 26366 27079 27085 27090 27134-27135 27175 27184 27186-27187 27199 27242 27255 27261 27285 27328 27365 27367 27426 27432 27474 27477 27480-27482 27512-27513 27515 27518-27519 27567 27576 27578 27580 27582-27583 27595 27604-27605 27617 27669 27671 27677 27712 27714 27720 27722-27723 27755 27758 27844 28039 28044-28045 28047 28056 28194 28200-28201 28215 28264 28294 28300-28301 28311 28317 28360 28362 28491-28492 28494-28495 28513 28516-28517 28521 28524 28538-28539 28647 28653 31337 31340 31342 31403 31406 31499 31502 31624-31626 32162-32163 32168-32169 32482 32538-32539 36817 36819 36822 36830-36831 36852-36853 36858-36859 40941 40946 40952-40954https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/506/5494?format=asciiOpticaldefaultJ/MNRAS/506/5494/table1Structural and photometric properties of the MATLAS dwarfs (from erratum, 2025MNRAS.544..372P, on 29-Oct-2025)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintpropindicates properties of the MATLAS nuclei in table4meta.ref.urlcharIDDwarf ID, MATLAS-NNNNmeta.id;meta.maincharprimaryHostETGAssumed host ETGmeta.id.parentcharDistDistanceMpcpos.distancefloatf_Dist[1/4] Distance flag (1)meta.codeintDistl? Distance measurementMpcpos.distancefloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharr_Distl[a-e] Distance measurement reference (G1)meta.ref;pos.framecharRAJ2000Dwarf Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Dwarf Declination (J2000)degpos.eq.dec;meta.maingmag? Apparent magnitude in g-bandmagphot.mag;em.opt.Bfloatnullableg-i? g-i color corrected for Galactic extinctionmagphot.colorfloatnullableg-r? g-r color corrected for Galactic extinctionmagphot.color;em.opt.B;em.opt.Rfloatnullablen? Sersic indexstat.fit.paramfloatnullablen_n[* ] Note on Sersic index (3)meta.notecharRe? Effective radiusarcsecphys.angSizefloatnullableb/a? Axis ratiophys.angSize;arith.ratiofloatnullablePA[]? Position angledegpos.posAngfloatnullablemu0g? Central surface brightness in g-bandmag.arcsec**-2phot.mag.sbfloatnullable<mueg>? Average surface brightness within Re in g-bandmag.arcsec**-2phot.mag.sbfloatnullableMorphMorphology of the dwarf (4)src.morphcharJ/MNRAS/506/5494/table4Properties of the MATLAS nucleirecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDDwarf ID, MATLAS-NNNNmeta.id;meta.maincharDistDistanceMpcpos.distancefloatDistl? Distance measurementMpcpos.distancefloatnullabler_Distl[a-e] Distance measurement reference (G1)meta.ref;pos.framecharRAJ2000Dwarf Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Dwarf Declination (J2000)degpos.eq.dec;meta.mainOffsetOffset distance from photocenterarcsecpos.angDistance;arith.difffloatgmag? Apparent magnitude in g bandmagphot.mag;em.opt.Bfloatnullableg-i? g-i color corrected for galactic extinctionmagphot.colorfloatnullableg-r? g-r color corrected for galactic extinctionmagphot.color;em.opt.B;em.opt.Rfloatnullable