ABELLZCAT ivo://nasa.heasarc/abellzcat NASA/GSFC HEASARC Andernach 2026-07-24 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Cluster of Galaxies The all-sky ACO (Abell, Corwin and Olowin 1989, ApJS, 70, 1) Catalog of 4073 rich clusters of galaxies and 1175 southern poor or distant S-clusters has been searched for published redshifts. Data for 1059 of them were found and classified into various quality classes, e.g. to reduce the problem of foreground contamination of redshifts. Taking the ACO selection criteria for redshifts, a total of 992 entries remain, 21 percent more than ACO. Redshifts for rich clusters are now virtually complete out to a redshift z of 0.05 in the north and of 0.04 in the south. In the north, the magnitude-redshift (m_10 - z) relation agrees with that of Kalinkov et al. (1985, Astr. Nachr., 306, 283). For the southern rich clusters, minor adjustments to the m_10 - z relation of ACO are suggested, while for the S-clusters the redshifts are about 30 percent lower than estimated. This table was created by the HEASARC in May 2010 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/VII/165A">CDS Catalog VII/165A</a> file catalog.dat. This is a service provided by NASA HEASARC . 1991lssp.conf..279A https://heasarc.gsfc.nasa.gov/W3Browse/all/abellzcat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=abellzcat& GET text/xml 180 99999 true 321.86790801 -85.01838468 0.25 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=abellzcat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_abellzcat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GALAXY CATALOG 0.25 Optical public abellzcat Abell Clusters Measured Redshifts Catalog name Abell Cluster Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable mag_10 Magnitude of 10th Brightest Cluster Member mag phot.mag double nullable redshift Redshift of Cluster src.redshift double nullable redshift_flag Flag [:*!?f] Indicates Quality Code of Redshift meta.code.qual;src.redshift char nullable ref_redshift Flag Indicates Reference(s) for Redshift Value meta.bib char nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable log_redshift_ratio Ratio Between Measured and Estimated Redshift src.redshift;arith.ratio double nullable abell_radius Abell Radius (=3 Mpc/Ho/50), Using qo=0.10 arcmin phys.angSize;src double nullable class Browse Object Classification src.class short nullable abell_distance_class Number [0,7] Indicates Abell Distance Class src.class.distance short nullable bii Galactic Latitude degree pos.galactic.lat double nullable bautz_morgan_flag Flag [:?] Indicates Quality Code of the Bautz-Morgan Class meta.code.qual;src.class.struct char nullable lii Galactic Longitude degree pos.galactic.lon double nullable bautz_morgan_class Number [1,5] Indicates Bautz-Morgan Class src.class.struct short nullable abell_richness_class Number [0,5] Indicates Abell Richness Class src.class.richness short nullable