J/MNRAS/500/310ivo://CDS.VizieR/J/MNRAS/500/310doi:10.26093/cds/vizier.75000310CDSDe Propris R.West M.J.Andrade-Santos F.Ragone-Figueroa C.Rasia E.,Forman W.Jones C.Kipper R.Borgani S.Lambas D.G.Romashkova E.A.,Patra K.C.2024-08-21T20:16:50Z2023-11-09T08:33:43ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesredshiftedgalaxy-kinematicsx-ray-sourcesvisible-astronomyWe explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.2021MNRAS.500..310Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/310CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/843/76 : Cool-core clusters with Chandra obs. (Andrade-Santos+, 2017)J/ApJ/819/63 : Hectospec survey of SZ clusters (HeCS-SZ) (Rines+, 2016)J/ApJ/862/172 : HeCS-red: Hectospec surveys of redMaPPer clustershttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/310https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/310http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/310https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/500/310https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/500/310http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/500/310GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/500/310/table1 (Clusters and properties of BCGs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/310/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/310/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/310/table1?GETtext/xml+votable180.050000true66.4625833-8.56069440.0055555555555555566/206-207 663 708 1006 2388 4206 4394 4665 4965 4990 5005 5099 5327 5344 5438 5536 5701 5931 6017 6088 6609 6873 7239 7242 7513 7768 7928 8220 8264 8271 8520 8526 8648 8788 8919 9036 9040 9048 9050 9072 9168 9354 9366 9468 9476 9506 9508 9583 9593 9764 9776 9997 10182 10271 10312 10318 10379 10483 10527 10823 11042 11063 11080 11182 11222 11253 11443 11467 11591 11626 11809 12007 12072 12121 12253 12642 12664 12732 15112 15286 16030 16471 16477 16492 16610 16642 16702 16713 16765 17141 17237 17300 17387 17457 17712 17841 18018 18176 18324 18410 18566 18584 18683 18894 18939 18953 19089 19130 19204 19314 19451 19457 19501 19586 19935 19993 20021 20083 20302 20335 20355 20361 20624 20643 20706 20874 21073 21766 22577 22722 24943 25042 25135 25188 25302 25391 25583 25981 26087 26109 26135 26185 26189 26208 26302 26432 27081 27224 27420 27595 27660 27736 27765 28005 28174 28181 28249 28265 28271 28294 28414 28429-28430 28622 30946 31395-31396 31398 31537 31851 32500 32602 32693 34186 34703 35147 35755 35962 35985 36048 36062 38822 40564 40777 40809 43837-43838 43849 43876 43939 43950 43968 44502 44554 44802 44817 45044 45543 46474 46571 47067 47960 48456 48489 48684 48688 48966https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/500/310?format=asciiX-rayOpticaldefaultJ/MNRAS/500/310/table1Clusters and properties of BCGsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharONameAlternative namemeta.idcharzRedshiftsrc.redshiftfloatPAcPosition angle of the cluster major axisdegpos.posAngcharPAbcgPosition angle of the brightest cluster galaxy (BCG) major axisdegpos.posAngfloatsigma? Velocity dispersionkm/sphys.veloc.dispersionintnullableSelSample selection (X for X-rays and V for velocities)meta.codechar_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