J/ApJS/140/239 RASS: clusters of galaxies around SGP (Cruddace+, 2002) ================================================================================ The ROSAT All-Sky Survey: a catalog of clusters of galaxies in a region of 1 steradian around the South Galactic Pole. Cruddace R., Voges W., Bohringer H., Collins C.A., Romer A.K., MacGillivray H., Yentis D., Schuecker P., Ebeling H., de Grandi S. =2002ApJS..140..239C ================================================================================ ADC_Keywords: Galaxy catalogs ; Clusters, galaxy ; X-ray sources ; Redshifts ; Galactic pole, south Keywords: catalogs - galaxies: clusters: general - X-rays: galaxies: clusters Abstract: A field of 1.013sr in the ROSAT All-Sky Survey (RASS), centered on the south Galactic pole (SGP), has been searched in a systematic, objective manner for clusters of galaxies. The procedure relied on a correlation of the X-ray positions and properties of ROSAT sources in the field with the distribution of galaxies in the COSMOS digitized database, which was obtained from scanning the plates of the UK Schmidt IIIa-J optical survey of the southern sky. The study used the second ROSAT survey database (RASS-2) and included several optical observing campaigns to measure cluster redshifts. The search, which is a precursor to the larger REFLEX survey encompassing the whole southern sky, reached the detection limits of both the RASS and the COSMOS data and yielded a catalog of 186 clusters in which the lowest flux is 1.5x10-12ergs/cm^2^/s in the 0.1-2.4keV band. Of these 157 have measured redshifts. Using a flux limit of 3.0x10-12ergs/cm^2^/s a complete subset of 112 clusters was obtained, of which 110 have measured redshifts. The spatial distribution of the X-ray clusters out to a redshift of 0.15 shows an extension of the Local Supercluster to the Pisces-Cetus supercluster (z<0.07), and an orthogonal structure at higher redshift (0.07 S Abell catalog: southern supplementary clusters Abell et al. 1989, Cat. AM Cambridge APM catalog NED: Arp & Madore 1987, Cat. APMCC Cambridge APM cluster catalog Dalton et al., 1997, Cat. CID EFAR survey Barton et al., 1996AJ....112..871B EDCC Edinburgh-Durham cluster catalog Lumsden et al., 1992, Cat. EMSS Einstein medium sensitivity survey Stocke et al., 1991, Cat. ESO European Southern Observatory No reference in NED HCG Hickson compact group catalog Hickson, 1982, Cat. , Barton et al., 1996AJ....112..871B SCG Catalog of COSMOS southern compact groups Prandoni et al., 1994AJ....107.1235P NGC Cluster dominated by NGC galaxy NED SH Cluster catalog from Shane-Wirtanen galaxy counts Shectman, 1985ApJS...57...77S -------------------------------------------------------------------------------- Byte-by-byte Description of file: refs.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 --- Ref Reference number 4- 22 A19 --- BibCode BibCode 24- 47 A24 --- Aut Author's name 49-148 A100 --- Com Comments -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Patricia Bauer [CDS] 04-Jun-2002