J/ApJ/580/774ivo://CDS.VizieR/J/ApJ/580/774doi:10.26093/cds/vizier.15800774CDSEbeling H.Mullis C.R.Tully R.B.2007-03-07T20:31:41Z2007-03-07T21:30:23ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesredshiftedWe report on the design and status of the Clusters in the Zone of Avoidance (CIZA) project, the first systematic X-ray search for clusters of galaxies behind the Milky Way. Our project, Clusters in the Zone of Avoidance (CIZA), uses X-ray data from the RASS for the initial cluster candidate selection and subsequent optical and NIR observations to confirm or refute the cluster nature of all selected candidates. We demonstrate that an X-ray survey can find galaxy clusters at low Galactic latitude where optical searches are inefficient because of massive obscuration and extinction problems. We discuss the rationale for such a survey in the context of large-scale structure studies and describe in detail the combined X-ray/optical/NIR approach used by CIZA to identify clusters of galaxies at |b|<20{deg}, a region of the sky that has traditionally been excluded from earlier cluster catalogs. So far, CIZA has identified and spectroscopically confirmed 137 galaxy clusters in what used to be the zone of avoidance; additional clusters have been confirmed in imaging observations and await spectroscopic observation. We present a catalog of the 73 X-ray brightest CIZA clusters, 53 (73%) of which are new discoveries.2002ApJ...580..774Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/580/774CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)VII/209 : Galaxies Behind the Milky Way (Saito+ 1990-91; Roman+ 1996-98)J/A+A/387/1 : DENIS galaxies behind the Milky Way (Vauglin+, 2002)J/ApJS/89/57 : IRAS galaxies behind southern Milky Way (Yamada+, 1993)J/A+AS/104/529 : IRAS galaxies behind the Milky Way (Takata+ 1994)J/A+AS/141/123 : Galaxies behind Southern Milky Way (Kraan-Korteweg 2000)J/ApJS/112/245 : Redshift survey for IRAS galaxies (Nakanishi+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/580/774https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/580/774http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/580/774https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/580/774https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/580/774http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/580/774GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/580/774/table1 (Catalog of the 73 X-Ray brightest clusters from the CIZA survey (Clusters In the Zone of Avoidance))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/580/774/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/580/774/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/580/774/table1?GETtext/xml+votable180.050000true16.94916754.1419440.0055555555555555566/1466 1701 1998 2388 2549 2920 3075 4000 6324 6848 6910 12870 13098 13100 13550 13760 13840 14744 14879 15112 15192 20984 21648 21766 21953 22108 23027 23714 23869 24032 24041 24118 24319 24333 24426 24482 29234 29488 29625 29694 29711 30379 31007 31851 32602 37170 37770 37771 37974 38246 39170 39658 39715 40111 40547 40564 40615 41077 41081 41249 41326 41423 41429 41893 41949 41988 42027 42808 43078 43270 43412 43542 47618https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/580/774?format=asciiX-rayOpticaldefaultJ/ApJ/580/774/table1Catalog of the 73 X-Ray brightest clusters from the CIZA survey (Clusters In the Zone of Avoidance)u_z[)] Uncertainty flag on zmeta.code.error;src.redshiftcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCIZACIZA designation (JHHMM.m+DDMM)meta.id;meta.maincharRAJ2000Cluster X-ray centroid Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Cluster X-ray centroid Declination (J2000.0)pos.eq.dec;meta.mainGLONGalacitc longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatCRTotal cluster count rate in ROSAT broad bandct/sphot.count;em.X-rayfloate_CRrms uncertainty on CRct/sstat.errorfloatNHEquivalent neutral hydrogen column density (1)1e+20cm**-2phys.columnDensityfloatFXTotal cluster flux at 0.1-2.4keV (2)1e-15W.m**-2phot.flux;em.X-rayfloatzRedshiftsrc.redshiftfloatLXTotal cluster X-ray luminosity at 0.1-2.4keV in units of 10^44^h_50_^-2^erg/s1e+37Wphys.luminosity;em.X-rayfloatr_z? Redshift references, separated by commameta.bibcharn_z[e] e: estimated redshiftmeta.notecharNameOther namemeta.idcharJ/ApJ/580/774/refsReferencesBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainint