J/AJ/151/78ivo://CDS.VizieR/J/AJ/151/78doi:10.26093/cds/vizier.51510078CDSPoggianti B.M.Fasano G.Omizzolo A.Gullieuszik M.Bettoni D.,Moretti A.Paccagnella A.Jaffe Y.L.Vulcani B.Fritz J.Couch W.,D'Onofrio M.2018-04-04T05:34:04Z2016-10-14T08:06:45ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesvisible-astronomyredshiftedGalaxies that are being stripped of their gas can sometimes be recognized from their optical appearance. Extreme examples of stripped galaxies are the so-called "jellyfish galaxies" that exhibit tentacles of debris material with a characteristic jellyfish morphology. We have conducted the first systematic search for galaxies that are being stripped of their gas at low-z (z=0.04-0.07) in different environments, selecting galaxies with varying degrees of morphological evidence for stripping. We have visually inspected B- and V-band images and identified 344 candidates in 71 galaxy clusters of the OMEGAWINGS+WINGS sample and 75 candidates in groups and lower mass structures in the PM2GC sample. We present the atlas of stripping candidates and a first analysis of their environment and their basic properties, such as morphologies, star formation rates and galaxy stellar masses. Candidates are found in all clusters and at all clustercentric radii, and their number does not correlate with the cluster velocity dispersion {sigma} or X-ray luminosity L_X_. Interestingly, convincing cases of candidates are also found in groups and lower mass halos (10^11^-10^14^M_{sun}_), although the physical mechanism at work needs to be securely identified. All the candidates are disky, have stellar masses ranging from log M/M_{sun}_<9 to >11.5 and the majority of them form stars at a rate that is on average a factor of 2 higher (2.5{sigma}) compared to non-stripped galaxies of similar mass. The few post-starburst and passive candidates have weak stripping evidence. We conclude that disturbed morphologies suggestive of stripping phenomena are ubiquitous in clusters and could be present even in groups and low mass halos. Further studies will reveal the physics of the gas stripping and clarify the mechanisms at work.2016AJ....151...78Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/151/78CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)VII/240 : Millennium Galaxy Catalogue (Liske+, 2003)J/A+A/581/A41 : OmegaWINGS photometry of gal. clusters (Gullieuszik+, 2015)J/A+A/561/A111 : U-band photometry of 17 WINGS clusters (Omizzolo+, 2014)J/ApJ/762/77 : PM2GC sample surface photometry (Poggianti+, 2013)J/MNRAS/432/3141 : Morphological classification of PM2GC gal. (Calvi+, 2013)J/MNRAS/420/926 : Morphology of galaxies in WINGS clusters (Fasano+, 2012)J/MNRAS/416/727 : Padova-Millennium Galaxy and Group Catalogue (Calvi+, 2011)J/A+A/526/A45 : WINGS-SPE II catalog (Fritz+, 2011)J/A+A/501/851 : WINGS photometry of 28 galaxy clusters (Valentinuzzi+, 2009)J/A+A/497/667 : WINGS: Deep optical phot. of nearby clusters (Varela+, 2009)J/A+A/495/707 : WINGS spectroscopy of 48 galaxy clusters (Cava+, 2009)J/MNRAS/318/333 : Extended ROSAT Bright Cluster Sample (Ebeling+ 2000)J/MNRAS/301/881 : The ROSAT brightest cluster sample - I. (Ebeling+, 1998)J/MNRAS/281/799 : XBACs, the sample (Ebeling+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/151/78https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/151/78http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/151/78https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/151/78https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/151/78http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/151/78GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/151/78/table1 (*OMEGAWINGS (O) and WINGS (W) clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/78/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/78/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/78/table1?GETtext/xml+votable180.050000true159.97625-8.61111110.005555555555555556Cone search capability for table J/AJ/151/78/table3 (*OMEGAWINGS and WINGS stripping candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/78/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/78/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/78/table3?GETtext/xml+votable180.050000true160.4327677-8.41981950.005555555555555556Cone search capability for table J/AJ/151/78/table4 (*PM2GC stripping candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/78/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/78/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/78/table4?GETtext/xml+votable180.050000true150.36560.155260.0055555555555555565/4504 6489 6809 6/662 663 1006 2184 2186 5030 5036 5305 5370 6002 6223 7010 7011 8265 8268 8429 8440 8442 8446 8648 8649 8788 9776 9943 9983 10114 10154 10306 10311 10312 10313 12121 12123 15085 16410 16423 16432 16434 16492 16494 16713 16715 16765 16767 17237 17239 17448 18009 18011 18014 18035 18038 18324 18411 18607 18622 18623 18936 18939 18965 19130 19204 19501 19503 19608 19610 19777 19987 19993 19995 19996 20020 20021 20029 20064 20074 20082 20083 20361 20481 20483 24622 24637 24638 24639 24943 24954 25042 25048 25961 25962 26004 26005 26027 26195 26196 26198 26200 26202 26212 26261 26275 26277 26278 26284 26732 26733 26734 26943 26965 26966 26967 26968 26982 26985 26986 27023 27029 27030 27034 27045 27046 27049 27050 27056 27072 27218 27221 27222 27224 27225 27226 27228 28005 32746 33235 33605 33625 33628 33649 33651 33652 34805 39055 39077 40803 40809 43827 43830 43835 43836 43838 43839 43921 43924 43939 43942 43945 43948 43950 43977 45981 45984 46018 46652 46653 46654 46910 46911 46996 46997 48594https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/151/78?format=asciiOpticaldefaultJ/AJ/151/78/table1*OMEGAWINGS (O) and WINGS (W) clustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[OW] Sample (O=OMEGAWINGS or W=WINGS) (1)src.samplecharClusterName of the galaxy clustermeta.id;meta.maincharf_Cluster[*] Flag on Cluster: *=member of Shapley supercluster (2)meta.codecharz[0.039/0.07] Redshiftsrc.redshiftfloatsigma[353/1309]? Cluster velocity dispersion {sigma}km/sphys.veloc.dispersionintnullablee_sigma[10/97]? Uncertainty in {sigma}km/sstat.errorintnullablelogLx[43.5/45.1] Log(L_X_) in 0.1-2.4keV bandlog(1e-07J.s**-1)phys.luminosityfloatNc[1/15] Number of stripping candidates (spectroscopic member or possible member, i.e., without redshift)meta.numberintNNumber of stripping candidates in table3meta.numberintnullableV09Indicates a cluster in Varela et al. 2009 (Cat. J/A+A/497/667)meta.numberintnullableNEDNED column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/AJ/151/78/table3*OMEGAWINGS and WINGS stripping candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyJellyfish galaxy identifier (JW prefix for WINGS clusters and JO for OMEGAWINGS clusters) (1)meta.id;meta.maincharn_GalaxyComments on Jellyfish identifiermeta.notecharClusterGalaxy clustermeta.id.parentcharImg[OW] Inspected image: O=OMEGAWINGS (OmegaCAM) or W=WINGS (INT or 2.2m) (2)obs.imagecharBand[BV] Inspected image bandpass (B or V)instr.bandpass;obs.imagecharRAJ2000Right Ascension decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination decimal degrees (J2000)degpos.eq.dec;meta.mainJ[1/5] JClass (visual evidence for stripping signatures in the optical) (G1)src.classintMm[-1/2] Cluster membership (1=member, 0=non-member, -1=redshift unknown) (3)meta.code.memberintz[0.0074/0.27]? Redshiftsrc.redshiftdoublenullabler_zSource for redshift (1=WINGS or OMEGAWINGS, 2=NED, 3=SDSS, or 4=average NED and SDSS) (4)meta.ref;pos.framecharG15Number of galaxies in Gullieuszik et al. 2015 (Cat. J/A+A/581/A41) within 1.5''meta.ref.urlintnullableF12Number of galaxies in Fasano et al. 2012 (Cat. J/MNRAS/420/926) within 1.5''meta.ref.urlintnullableV09Number of galaxies in Valera et al. 2009 (Cat. J/A+A/497/667) within 1.5''meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/151/78/table4*PM2GC stripping candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMGC[648/96949] Galaxy identifier in Millennium Galaxy Catalog (MGC; Liske et al. 2003, Cat. VII/240)meta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainJ[1/4] JClass (visual evidence for stripping signatures in the optical) (G1)src.classintz[0.04/0.07] MGC redshift (Liske et al. 2003, Cat. VII/240)src.redshiftdoubleCommentComments on visual appearancemeta.note;pos.cartesian.ycharPM2GCNumber of data in Padova-Millennium Galaxy and Group Catalog (PM2GC; Calvi et al. 2011), and in Calvi et al. 2013meta.numberintnullableP13Number of data in Poggianti et al. 2013 (Cat. J/ApJ/762/77)meta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar