J/ApJ/723/985ivo://CDS.VizieR/J/ApJ/723/985doi:10.26093/cds/vizier.17230985CDSGodlowski W.Piwowarska P.Panko E.Flin P.2017-10-09T13:34:34Z2012-08-29T13:53:07ZCDS support team

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

cds-question@unistra.frgalaxy-clustersastrometryWe present an analysis of the spatial orientations of galaxies in 247 optically selected rich Abell clusters which have at least 100 members in the considered area. We investigated the relation between angles that give information about galaxy angular momenta and the number of members in each structure. The position angles of the galaxies' major axes, as well as two angles describing the spatial orientation of the galaxy plane, were tested for isotropy by applying three different statistical tests. It is found that the values of the statistics increase with the amount of the galaxies' members, which is equivalent to the existence of a relation between anisotropy and the number of galaxies in a cluster. The search for connection between the galaxies' alignments and Bautz-Morgan (BM) morphological types of examined clusters showed a weak dependence. A statistically marginal relation between velocity dispersion and cluster richness was observed. In addition, it was found that the velocity dispersion decreases with BM type at almost 3{sigma} level. These results show the dependence of alignments with respect to clusters' richness, which can be regarded as an environmental effect.2010ApJ...723..985Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/723/985CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 2012)VII/165 : Measured Redshifts of Abell Clusters of Galaxies (Andernach 1991)VII/110 : Rich Clusters of Galaxies (Abell+ 1989)VII/88 : CEDAG Catalogue of Clusters of Galaxies (Fernandez+ 1984)J/other/JAD/12.1 : Cat. of galaxy structures based on the MRSS (Panko+, 2006)J/MNRAS/329/87 : 2dF Galaxy Redshift Survey: galaxy clusters (de Propris+,J/ApJS/125/35 : ACO clusters redshifts and velocity dispersions (Struble+J/A+A/310/31 : The ESO Nearby Abell Cluster Survey. II. (Mazure+ 1996)J/ApJS/95/401 : Clusters of galaxies position angles (Plionis 1994)J/AJ/108/1 : Flatness of clusters of galaxies (Struble+ 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/723/985https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/723/985http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/723/985https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/723/985https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/723/985http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/723/985GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/723/985/table4 (The list of investigated clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/723/985/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/723/985/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/723/985/table4?GETtext/xml+votable180.050000true0.49941-43.7643850.0055555555555555566/16407 16411 16412 16429 16454 16471 16477 16481 16490 16510 16543 16582 16584 16593 16599 16610 16638 16642 16654 16656 16661 16683 16693 16713 16720 16782 16806 16826 16833 16898 16933 16948 16952 16953 16958 16980 16994 17044 18437 20642 20643 20658 21134 21154 32831 32889 32894 32987 32988 33010 33087 33180 33224 33235 33248 33420 33433 33437 33449 33452 33455 33466 33479 33579 33614 33628 33638 33649 33658 33716 33730 33731 33757 33773 33774 33849 33917 33968 34019 34029 34030 34037 34038 34040 34197 34229 34304 34355 34371 34373 34375 34379 34436 34441 34443 34446 34461 34468 34480 34490 34548 34554 34586 34596 34614 34634 34648 34703 34726 34746 34772 34790 34805 34819 34905 34910 34966 34999 35024 35055 35121 35130 35228 35302 35314 35342 35343 35346 35392 35441 35442 35455 35487 35490 35492 35493 35494 35505 35511 35549 35638 35705 35747 35755 35782 35789 35802 35818 35970 36017 36023 36048 36062 36065 36070 36088 36144 36217 36289 36292 36362 36367 36385 36453 36459 45131 45324 45325 45327 45336 45349 45421 45465 45502 45507 45542 45543 45562 45687 45893 45905 45915 45941 45942 45973 45981 45984 45997 46066 46094 46127 46142 46175 46198 46218 46222 46223 46225 46237 46255 46258 46264 46303 46313 46441 46442 46456 46468 46471 46484 46540 46602 46643 46652 46660 46687 46728 46738 46744 46793 46827 46855 46867 46888 46889 46891 46915 46936 46997 47016 47065 48132 48143 48171 48193 48261 48323 48396 48429 48431 48432 48489 48576https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/723/985?format=asciiOpticaldefaultJ/ApJ/723/985/table4The list of investigated clustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPFPanko-Flin (2006, Cat. J/other/JAD/12.1) catalog identification (NNNN-NNNN)meta.id;meta.maincharRAJ2000Cluster center Right Ascension in decimal hours (J2000)degpos.eq.ra;meta.mainDEJ2000Cluster center Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainN0Number of galaxies in the field of structuremeta.numberintN1Number of galaxies with b/a{<=}0.75meta.numberintACOAbell et al. 1989 (Cat. VII/110) structure identification (sNNNN or ANNNN)meta.id.assoccharp[xyz0a? ] Galaxies alignement: position angle p (1)meta.notechardelD[xyz0a? ] Galaxies alignement: polar angle {delta}_D_ (1)meta.notechareta[0?rta] Galaxies alignement: azimuthal angle {eta} (1)meta.notechar