J/MNRAS/491/1901ivo://CDS.VizieR/J/MNRAS/491/1901doi:10.26093/cds/vizier.74911901CDSHabas R.Marleau F.R.Duc P.-A.Durrell P.R.Paudel S.Poulain M.,Sanchez-Janssen R.Sreejith S.Ramasawmy J.Stemock B.Leach C.,Cuillandre J.-C.Gwyn S.Agnello A.Bilek M.Fensch J.Muller O.,Peng E.W.van der Burg R.F.J.2024-08-20T20:14:26Z2023-04-03T16:31:31ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyphotometrysloan-photometryWe present the photometric properties of 2210 newly identified dwarf galaxy candidates in the Mass Assembly of early Type gaLAxies with their fine Structures (MATLAS) fields. The MATLAS deep imaging survey mapped ~142deg^2^ of the sky around nearby isolated early type galaxies using MegaCam on the Canada-France-Hawaii Telescope, reaching surface brightnesses of ~28.5-29 in the g band. The dwarf candidates were identified through a direct visual inspection of the images and by visually cleaning a sample selected using a partially automated approach, and were morphologically classified at the time of identification. Approximately 75 per cent of our candidates are dEs, indicating that a large number of early type dwarfs also populate low-density environments, and 23.2 per cent are nucleated. Distances were determined for 13.5 per cent of our sample using pre-existing z_spec_ measurements and HI detections. We confirm the dwarf nature for 99 per cent of this sub-sample based on a magnitude cut M_g_=-18. Additionally, most of these (~90 per cent) have relative velocities suggesting that they form a satellite population around nearby massive galaxies rather than an isolated field sample. Assuming that the candidates over the whole survey are satellites of the nearby galaxies, we demonstrate that the MATLAS dwarfs follow the same scaling relations as dwarfs in the Local Group as well as the Virgo and Fornax clusters. We also find that the nucleated fraction increases with M_g_, and evidence of a morphology-density relation for dwarfs around isolated massive galaxies.2020MNRAS.491.1901Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/491/1901CatalogResearchIsServedByTAP 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/491/1901https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/491/1901http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/491/1901https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/491/1901https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/491/1901http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/491/1901GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/491/1901/table1 (Catalogue of ETGs with MegaCam observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/491/1901/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/491/1901/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/491/1901/table1?GETtext/xml+votable180.050000true146.4722333-0.26912220.0055555555555555566/664 697 2145 2374 4439 4447 4565 4807 4829 4840 4869 4930 4989 5021 5075 5125 5134 5182 5196 5288 5398 5429 5474 5599 5745 5773 5975 5999 6012 6082 6087 6089-6090 6093 6097 6099 6103 6162 7214 7287 7355 7374 7385 7424 7442 7460 7560 8193 8195-8196 9186 10454 10501 10523 10551 10637 10714 10720 10739 10924 11026 11435 11443 11457 11776 11791 11800 11824 13336 13401 15056 15204 17744 17761 18002 18209 18269 18324-18325 18327 18755 18766 19442 20014 20070 20101 22740 22914 23177-23178 25893 25907 25979 26055 26125 26149 26166 26173 26210 26307 26313 26316 26361 27079 27135 27186 27199 27255 27367 27480 27515 27518 27578 27582 27595 27604 27671 27720 27722 27755 27758 28045 28200 28221 28264 28300 28311 28362 28491 28495 28524 28538 28653 31340 31454 31499 31624 32168-32169 32482 32539 36819 36831 40952https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/491/1901?format=asciiOpticaldefaultJ/MNRAS/491/1901/table1Catalogue of ETGs with MegaCam observationsSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharBand[ugri] Observed bandinstr.bandpasscharNexpNumber of individual exposures for the given filtermeta.numberintIntTimeTotal integration timestime.epochintFWHMImage quality (FWHM of the PSF)arcsecinstr.det.psffloatbkgBackground level (in ADUs)phot.mag.sbfloat_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.main