J/ApJS/237/36ivo://CDS.VizieR/J/ApJS/237/36doi:10.26093/cds/vizier.22370036CDSPaudel S.Smith R.Yoon S.J.Calderon-Castillo P.Duc P.-A.2021-02-23T09:24:10Z2018-11-19T08:15:58ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomysloan-photometryultraviolet-photometryredshiftedgalaxy-classification-systemssurveyscatalogsWe present the largest publicly available catalog of interacting dwarf galaxies. It includes 177 nearby merging dwarf galaxies of stellar mass M*<10^10^M_{sun}_ and redshifts z<0.02. These galaxies are selected by visual inspection of publicly available archival imaging from two wide-field optical surveys (SDSS-III and the Legacy Survey), and they possess low-surface-brightness features that are likely the result of an interaction between dwarf galaxies. We list UV and optical photometric data that we use to estimate stellar masses and star formation rates. So far, the study of interacting dwarf galaxies has largely been done on an individual basis, and lacks a sufficiently large catalog to give statistics on the properties of interacting dwarf galaxies, and their role in the evolution of low-mass galaxies. We expect that this public catalog can be used as a reference sample to investigate the effects of the tidal interaction on the evolution of star formation, and the morphology/structure of dwarf galaxies. Our sample is overwhelmingly dominated by star-forming galaxies, and they are generally found significantly below the red sequence in the color-magnitude relation. The number of early-type galaxies is only 3 out of 177. We classify them, according to observed low-surface-brightness features, into various categories including shells, stellar streams, loops, antennae, or simply interacting. We find that dwarf-dwarf interactions tend to prefer the low-density environment. Only 41 out of the 177 candidate dwarf-dwarf interaction systems have giant neighbors within a sky-projected distance of 700kpc and a line-of-sight radial velocity range +/-700km/s, and compared to the LMC-SMC, they are generally located at much larger sky-projected distances from their nearest giant neighbors.2018ApJS..237...36Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/237/36CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/cfht : Log of CFHT Exposures (CADC, 1979-)VII/74 : Atlas of Peculiar Galaxies (Arp 1966)VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)VIII/73 : HI Parkes All Sky Survey Catalogue (HIPASS) (Meyer+, 2004)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/AJ/117/75 : BR photom. in Coma, A2199 & AWM5 clusters (Conselice+, 1999)J/ApJS/147/29 : BRHalpha data of blue compact dwarf gal. (Gil De Paz+, 2003)J/AJ/130/2647 : Tidal features of 126 nearby red gal. (van Dokkum+, 2005)J/AJ/133/791 : Spitzer photom. of normal & interacting gal. (Smith+, 2007)J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/ApJS/182/216 : Surface photometry of Virgo ellipticals (Kormendy+, 2009)J/ApJ/706/599 : H{alpha} and UV SFR in the local volume (Lee+, 2009)J/MNRAS/447/1531 : HI data collection update (Courtois+, 2015)J/MNRAS/446/120 : ATLAS3D project. XXIX (Duc+, 2015)http://www.sdss.org/ : SDSS home pagehttp://legacysurvey.org/ : The Legacy Surveys home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/237/36https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/237/36http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/237/36https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/237/36https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/237/36http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/237/36GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/237/36/dgal (Physical and derived properties of the merging dwarf galaxies (tables 1 and 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/237/36/dgal?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/237/36/dgal?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/237/36/dgal?GETtext/xml+votable180.050000true18.41380.87410.0055555555555555566/40 693 2126 4147 4181 4224 4301 4447 4502 4517 4630 4651 4709 4808 4844 4912 5028 5082 5283 5407 5584 5661 5664 5726 5741 5799 5804 5827 5828 5840 5902 5935 6037 6047 6302 6418 6605 7379 7381 7590 7603 8308 8311 8501 8617 8633 8686 8736 8829 8902 8945 8984 9011 9052 9098 9102 9111 9118 9190 9196 9217 9246 9361 9786 9807 9895 9954 9973 10025 10190 10396 10433 10461 10616 10625 10626 10669 10808 10905 10911 10949 10951 10964 10965 10974 11090 11098 11198 11371 11398 11776 11874 12594 12647 13346 17497 17670 17723 17818 18011 18235 18765 18792 18793 18799 19242 19401 19411 19631 19696 20015 20044 20183 20388 21886 25594 25725 25852 25883 25898 25912 26134 26139 26151 26261 26309 26329 26450 26592 26812 26870 26936 26960 26979 27001 27079 27199 27254 27381 27427 27434 27554 27635 27643 27713 27773 27884 27935 28042 28070 28081 28178 28226 28229 28250 28269 28293 28294 28355 28443 28458 28461 28464 28616 31450 31619 31659 32440 36777 36781 36782 40954 45036 45045 49017https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/237/36?format=asciiUVOpticaldefaultJ/ApJS/237/36/dgalPhysical and derived properties of the merging dwarf galaxies (tables 1 and 2)SimbadNameSimbad column added by the CDSmeta.idcharSeq[1/177] Internal index numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentifier (IdHHMMDDMM or IdHHMM-DDMM)meta.idcharRAJ2000Right Ascension decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainz[0.0006/0.02] Spectroscopic redshift from NEDsrc.redshiftfloatgmag[9.2/18.7] Apparent g band AB magnitude (1)magphot.mag;em.opt.Bfloatrmag[9.3/18.4] Apparent r band AB magnitude (1)magphot.mag;em.opt.RfloatFUVmag[10.8/21.7]? GALEX FUV band AB magnitude (1)magphot.mag;em.UV.100-200nmfloatnullableNUVmag[10.8/19.7]? GALEX NUV band AB magnitude (1)magphot.mag;em.UV.200-300nmfloatnullableMorphMorphological class of merging dwarf system (2)src.morph.typecharNameGalaxy name from NEDmeta.idcharDist[3.9/85.4] Adopted distance from NED (3)Mpcpos.distance;pos.heliocentricfloatg-r[-0.3/0.8] SDSS (g-r) color indexmagphot.color;em.opt.B;em.opt.RfloatBMag[-20.1/-12.1] Absolute B band magnitudemagphys.magAbsfloatlogM*[6.9/10] log stellar masslog(solMass)phys.massfloatM1:M2[1/120]? Mass ratio of interacting galaxiesphys.mass;arith.ratiointnullableSFR[-35/0.7]? log star formation rate (4)log(solMass.yr**-1)meta.idfloatnullablelogMHI[7.3/10.1]? log H I masslog(solMass)phys.massfloatnullableSat[0/1]? Satellite code (1= Is a satellite or 0= Is not a satellite)meta.codeintnullableNgh[0/118]? Number of neighbors within our search criteria (5)meta.numberintnullableDR12Display the SDSS-DR12 photometric catalog (V/147) within 5"meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar