J/A+A/656/A144ivo://CDS.VizieR/J/A+A/656/A144doi:10.26093/cds/vizier.36560144CDSBohringer H.Chon G.2023-12-21T16:38:59Z2022-04-20T08:05:09ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesIt is important to map the large-scale matter distribution in the local Universe for cosmological studies, such as the tracing of the large-scale peculiar velocity flow, the characterisation of the environment for different astronomical objects, and for precision measurements of cosmological parameters. We used X-ray luminous clusters to map this matter distribution and find that about 51% of the groups and clusters are members of superclusters which occupy only a few percent of the volume. In this paper we provide a detailed description of these large-scale structures. With a friends-to-friends algorithm, we find eight superclusters with a cluster overdensity ratio of at least two with five or more galaxy group and cluster members in the cosmic volume out to z=0.03. The four most prominent ones are the Perseus-Pisces, the Centaurus, the Coma, and the Hercules supercluster, with lengths from about 40 to over 100Mpc and estimated masses of 0.6-2.2x10^16^M_{sun}_. The largest of these structures is the Perseus-Pisces supercluster. The four smaller superclusters include the Local and the Abell 400 supercluster and two superclusters in the constellations Sagittarius and Lacerta. We provide detailed maps, member catalogues, and physical descriptions of the eight superclusters. By constructing superclusters with a range of cluster sub-samples with different lower X-ray luminosity limits, we show that the main structures are always reliably recovered.2021A&A...656A.144Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/656/A144CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/656/A144https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/656/A144http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/656/A144https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/656/A144https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/656/A144http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/656/A144GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/656/A144/tables (Groups and clusters (tables 3-8, A1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/656/A144/tables?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/656/A144/tables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/656/A144/tables?GETtext/xml+votable180.050000true186.55412.95770.0055555555555555566/8195-8196 9471 9672 10095 10132 10182 10207 10379 10456 11636 13543 13550 13564 13760 15091 15174 15342 24951 25769 26268 26313 26563 26596 27652 27760 27765 27773 28075 28090 28249 28360 28377 28414 28471 28494 38704 38853 41423 43078 43259 43503 43626 43632 43828 43876-43877 43891 43941 44554 47467 47541 47981 48064 48319 48712https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/656/A144?format=asciiX-raydefaultJ/A+A/656/A144/tablesGroups and clusters (tables 3-8, A1)TabTable number (1)meta.id;meta.datasetcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameNamemeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatn_z[a] Note on redshift (2)meta.notecharFXFlux in the 0.1-2.4keV band (in 10^-12^erg/s/cm2)1e-15W.m**-2phot.flux;em.X-raydoublee_FXError in FX in per cent unit%stat.errorfloatLXX-ray luminosity (in 10^+44^erg/s)1e+37Wphys.luminosity;em.X-rayfloatM200Cluster mass estimated from the LX-mass relation within r2001e+14solMassphys.massfloatrout? Radius out to which the X-ray luminosity is detected in the RASSarcminphys.angSizefloatnullablenHInterstellar column density in the line-of-sight1e+20cm**-2phys.columnDensityfloatMembName of the SC of which the cluster is a member (3)meta.idcharANameName of the central dominant galaxy of the groupmeta.idcharNotesNotes (2)meta.notechar