J/ApJ/594/154 160 square degree ROSAT survey (Mullis+, 2003) ================================================================================ The 160 square degree ROSAT survey: the revised catalog of 201 clusters with spectroscopic redshifts. Mullis C.R., McNamara B.R., Quintana H., Vikhlinin A., Henry J.P., Gioia I.M., Hornstrup A., Forman W., Jones C. =2003ApJ...594..154M ================================================================================ ADC_Keywords: Surveys ; Clusters, galaxy ; Redshifts ; X-ray sources Keywords: catalogs - galaxies: clusters: general - surveys - X-rays: galaxies: clusters Abstract: We present the revised catalog of galaxy clusters detected as extended X-ray sources in the 160 Square Degree ROSAT Survey, including spectroscopic redshifts and X-ray luminosities for 200 of the 201 members. The median redshift is z_median_=0.25, and the median X-ray luminosity is L_X,median_=4.2x10^43^h_50_^2^erg/s (0.5-2.0keV). This is the largest high-redshift sample of X-ray-selected clusters published to date. There are 73 objects at z>0.3 and 22 objects at z>0.5 drawn from a statistically complete flux-limited survey with a median object flux of 1.4x10^-13^erg/cm^2^/s. We describe the optical follow-up of these clusters with an emphasis on our spectroscopy, which has yielded 155 cluster redshifts, 110 of which are presented here for the first time. These measurements, combined with 45 from the literature and other sources, provide near-complete spectroscopic coverage for our survey. We discuss the final optical identifications for the extended X-ray sources in the survey region and compare our results to similar X-ray cluster searches. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table4.dat 129 223 160 square degree ROSAT Survey Cluster Catalog refs.dat 71 26 References -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 14 A14 --- Name Object name (RXJHHMM.m+DDMM) 16- 18 I3 --- [VMF98] Object number (1) 20- 21 I2 h RAh Hour of Right Ascension (J2000) 23- 24 I2 min RAm Minute of Right Ascension (J2000) 26- 29 F4.1 s RAs Second of Right Ascension (J2000) 31 A1 --- DE- Sign of the Declinatin (J2000) 32- 33 I2 deg DEd Degree of Declination (J2000) 35- 36 I2 arcmin DEm Arcminute of Declination (J2000) 38- 39 I2 arcsec DEs Arcsecond of Declination (J2000) 41- 42 I2 arcsec e_Pos Positional uncertainty (2) 44- 46 I3 arcsec Rad Angular core radius (3) 48- 49 I2 arcsec e_Rad Uncertainty in Rad 51- 55 F5.1 10-14mW/m2 Flux Total 0.5-2.0keV unabsorbed X-ray flux in units of 10^-14^erg/cm^2^/s 57- 60 F4.1 10-14mW/m2 e_Flux Uncertainty in Flux 62- 65 F4.2 10+37W Lum ? Cluster 0.5-2.0keV luminosity in units of 10^44^erg/s/h_50_^2^ 67- 71 F5.3 --- z ? Redshift 73- 74 I2 --- r_z ? Redshift reference 76 A1 --- f_z [F] Indicates a likely false detection due to blends of unresolved X-ray point sources 78-119 A42 --- Notes Additional notes -------------------------------------------------------------------------------- Note (1): Identification used by Vikhlinin et al., 1998ApJ...502..558V Note (2): In terms of the radius for the 90% confidence X-ray position error circle. Note (3): Based on a {beta}-model fit with {beta}=2/3. -------------------------------------------------------------------------------- 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- 43 A20 --- Aut Author's name 45- 66 A22 --- Com Comments -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Patricia Bauer [CDS] 24-Oct-2003