J/MNRAS/499/3399ivo://CDS.VizieR/J/MNRAS/499/3399doi:10.26093/cds/vizier.74993399CDSRen J.Zheng X.Z.Valls-Gabaud D.Duc P.-A.Bell E.F.Pan Z.Qin J.,Shi D.D.Qiao M.He Y.Wen R.2024-08-21T20:16:22Z2023-11-07T10:22:58ZCDS support team

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

cds-question@unistra.frdwarf-galaxiesinteracting-galaxiesgalaxy-radiiredshiftedvisible-astronomyWe investigate the properties of long tidal tails using the largest to date sample of 461 merging galaxies with log(M_*_/M_{sun}_)>=9.5 within 0.2=<z=<1 from the COSMOS survey in combination with Hubble Space Telescope imaging data. Long tidal tails can be briefly divided into three shape types: straight (41 per cent), curved (47 per cent), and plume (12 per cent). Their host galaxies are mostly at late stages of merging, although 31 per cent are galaxy pairs with projected separations d>20kpc. The high formation rate of straight tidal tails needs to be understood as the projection of curved tidal tails accounts for only a small fraction of the straight tails. We identify 165 tidal dwarf galaxies (TDGs), yielding a TDG production rate of 0.36 per merger. Combined with a galaxy merger fraction and a TDG survival rate from the literature, we estimate that ~5 per cent of local dwarf galaxies (DGs) are of tidal origin, suggesting the tidal formation is not an important formation channel for the DGs. About half of TDGs are located at the tip of their host tails. These TDGs have stellar masses in the range of 7.5=<log(M_*_/M_{sun}_)=<9.5 and appear compact with half-light radii following the M_*_-R_e_ relation of low-mass elliptical galaxies. However, their surface brightness profiles are generally flatter than those of local disc galaxies. Only 10 out of 165 TDGs have effective radii larger than 1.5kpc and would qualify as unusually bright ultradiffuse galaxies.2020MNRAS.499.3399Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/499/3399CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/832/90 : Merging galaxies with tidal tails in COSMOS to z=1 (Wen+, 2016)J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/499/3399https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/499/3399http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/499/3399https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/499/3399https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/499/3399http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/499/3399GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/499/3399/table1 (The properties and measured tail parameters of our 461 LTTGs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/499/3399/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/499/3399/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/499/3399/table1?GETtext/xml+votable180.050000true150.40967921.64097220.005555555555555556Cone search capability for table J/MNRAS/499/3399/table2 (The parameters of 165 TDGs identified from 126 merging galaxies with long tidal tails)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/499/3399/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/499/3399/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/499/3399/table2?GETtext/xml+votable180.050000true150.409721111.641231110.0055555555555555565/6814 6/27245 27247https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/499/3399?format=asciiOpticaldefaultJ/MNRAS/499/3399/table1The properties and measured tail parameters of our 461 LTTGsSimbadNameSimbad column added by the CDSmeta.idcharnullableMoreLink to Table 2meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy identifier as in Muzzin et al. (2013ApJS..206....8M, Cat. J/ApJS/206/8)meta.id;meta.mainintprimaryRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatlogMassLogarithm of the stellar masslog(solMass)phys.massfloatNucleusNumber of nuclei (S:single; D:double; M:multiple)meta.codecharNucDist? Nuclear separation distancekpcpos.distancefloatnullableShapeShape type of tidal tail (1)meta.codecharTailTail lengthkpcsrc.morph.scLengthfloatNTDGNumber of tidal dwarf galaxies (TDGs) on tidal tailmeta.numberintLPTDGLocation parameter (2)meta.codecharJ/MNRAS/499/3399/table2The parameters of 165 TDGs identified from 126 merging galaxies with long tidal tailsRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy identifier as in Muzzin et al. (2013ApJS..206....8M, Cat. J/ApJS/206/8)meta.id.parentintNameTidal dwarf galaxy name (TDG-NNNNNN-N)meta.id;meta.maincharDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatlogMassLogarithm of the stellar masslog(solMass)phys.massfloatReEffective radiuskpcphys.size.radiusfloatF814WMAGHST/ACS F814W band absolute magnitudemagphot.mag;em.opt.IfloatcConcentration parameter (R_50_/R_90_) (1)stat.paramfloat