The ROSAT Brightest Cluster Sample - IV. The extended sample

By H. Ebeling, A. Edge, S. Allen, C. Crawford, A. C. Fabian, J. Huchra. 2000

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We present a low-flux extension of the X-ray-selected ROSAT Brightest Cluster Sample (BCS) published in Paper I of this series. Like the original BCS and employing an identical selection procedure, the BCS extension is compiled from ROSAT All-Sky Survey (RASS) data in the northern hemisphere (δ≥0°) and at high Galactic latitudes (|b|≥20°). It comprises 99 X-ray-selected clusters of galaxies with measured redshifts z≤0.3 (as well as eight more at z>0.3) and total fluxes between 2.8×10−12 and 4.4×10−12 erg cm−2 s−1 in the 0.1–2.4 keV band (the latter value being the flux limit of the original BCS). The extension can be combined with the main sample published in 1998 to form the homogeneously selected extended BCS (eBCS), the largest and statistically best understood cluster sample to emerge from the RASS to date. The nominal completeness of the combined sample (defined with respect to a power-law fit to the bright end of the BCS log N–log S distribution) is relatively low at 75 per cent (compared with 90 per cent for the high-flux sample of Paper I). However, just as for the original BCS, this incompleteness can be accurately quantified, and thus statistically corrected for, as a function of X-ray luminosity and redshift. In addition to its importance for improved statistical studies of the properties of clusters in the local Universe, the low-flux extension of the BCS is also intended to serve as a finding list for X-ray-bright clusters in the northern hemisphere which we hope will prove useful in the preparation of cluster observations with the next generation of X-ray telescopes such as Chandra and XMM-Newton. An electronic version of the eBCS can be obtained from the following URL: http://www.ifa.hawaii.edu/~ebeling/clusters/BCS.html.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/b3b79420d07da8fbabbff696ceeb6ce637d87f62

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Citations in the corpus

ROBUST OPTICAL RICHNESS ESTIMATION WITH REDUCED SCATTER (2011, unknown): “The first sample is drawn from the LoCuSS observations of high luminosity clusters from RASS cluster catalogs (Ebeling et al. 1998, 2000; Böhringer et al. 2004).”
RELICS: Reionization Lensing Cluster Survey (2019, background): “7–1357 at z = 0.833 was discovered by Ebeling et al. (2000b) in the Wide Angle ROSAT Pointed Survey (WARPS).”
Evidence for Significant Growth in the Stellar Mass of Brightest Cluster Galaxies over the Past 10 Billion Years (2012, methodology): “…of clusters in Stott et al. (2008) with mass measurements, we use the X-ray temperatures (Ebeling et al. 2007, 2010) and the X-ray luminosities (Ebeling et al. 1996, 1998, 2000) of these clusters (the luminosities were corrected for the cosmology used in this paper) and the temperature–mass…”
GMRT radio halo survey in galaxy clusters at z = 0.2–0.4 - II. The eBCS clusters and analysis of the complete sample (2008, background): “…Flux Limited X–ray galaxy cluster catalogue (REFLEX, Böhringer et al. 2004) and from the extended ROSAT Brightest Cluster Sample catalogue (BCS, Ebeling et al. 1998, 2000) we selected all clusters satisfying the following constraints: 1) LX(0.1–2.4 keV) > 5 × 1044 erg s−1; 2) 0.2 < z ≤ 0.4;…”
LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters (2009, methodology): “…also see Zhang et al. 2008) is a systematic multi-wavelength survey of X-ray luminous clusters (LX[0.1–2.4 keV] & 2 1044 erg s 1) at redshifts of 0.15 z 0.3 and declinations of 70ı ı +70ı, selected from the ROSAT All Sky Survey (RASS: Ebeling et al. 1998, 2000; Böhringer et al. 2000, 2004).”
LoCuSS: comparison of observed X-ray and lensing galaxy cluster scaling relations with simulations (2008, methodology): “LoCuSS provides a morphologyunbiased sample of ∼100 X-ray luminous galaxy clusters in the redshift range 0.14 ≤ z ≤ 0.3 selected from the ROSAT All Sky Survey catalogs (Ebeling et al. 1998, 2000; Böhringer et al. 2004).”
Probing cosmic isotropy with a new X-ray galaxy cluster sample through the LX–T scaling relation (2020, methodology): “The parent catalogs of the clusters we use are The ROSAT extended Brightest Cluster Sample (eBCS, Ebeling et al. 2000), The Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey (Böhringer et al. 2000) and the ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey Catalog (Böhringer et al.…”
A Measurement of Large-Scale Peculiar Velocities of Clusters of Galaxies: Results and Cosmological Implications (2008, background): “…the ROSAT-ESO Flux Limited X-ray catalog (REFLEX) (Böhringer et al. 2004) in the southern hemisphere, the extended Brightest Cluster Sample (eBCS) (Ebeling et al. 1998, 2000) in the north, and the Clusters in the Zone of Avoidance (CIZA) (Ebeling et al. 2002; Kocevski et al. 2007) sample along…”
The MCXC: a meta-catalogue of x-ray detected clusters of galaxies (2010, methodology): “Data (Ebeling et al. 2000b,c) are retrieved from VizieR and merged into a single BCS catalogue where the namesBCS and eBCS are kept as sub-catalogue labels (see Table 1).”
SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL INTERPRETATION (2010, background): “…X-ray (REFLEX) galaxy cluster survey (Böhringer et al. 2004) in the southern hemisphere above the Galactic plane (δ < 2.5◦ and |b| > 20◦) and the extended Brightest Cluster Sample (eBCS; Ebeling et al. 1998, 2000) in the northern hemisphere above the Galactic plane (δ > 0◦ and |b| > 20◦).”
WINGS: a WIde-field Nearby Galaxy-cluster Survey. I. Optical imaging (2005, methodology): “…flux limited samples compiled from ROSAT All-Sky Survey data: the ROSAT Brightest Cluster Sample (Ebeling et al. 1998, BCS), and its extension (Ebeling et al. 2000, eBCS) in the Northern hemisphere and the X-Ray-Brightest Abell-type Cluster sample (Ebeling et al. 1996, XBACs) in the Southern…”
The X-ray brightest clusters of galaxies from the Massive Cluster Survey (2010, methodology): “(Ebeling et al. 1998, 2000; Böhringer et al. 2004) and the complete set of the 12 most distant MACS clusters (z > 0.5) released earlier (Ebeling et al. 2007), the sample presented here allows cosmological and astrophysical studies of the properties and evolution of the most massive galaxy clusters…”
X-ray–optical classification of cluster mergers and the evolution of the cluster merger fraction (2011, background): “Ebeling et al. (2000b), investigating the failure of the Einstein Observatory Extended Medium-Sensitivity Survey to detect Cl J0152.”
New constraints on dark energy from the observed growth of the most X-ray luminous galaxy clusters (2007, background): “The ROSAT Brightest Cluster Sample (BCS; Ebeling et al. 1998, 2000) and ROSAT- c© 2008 RAS ESO Flux Limited X-ray sample (REFLEX; Böhringer et al. 2004) together cover approximately two-thirds of the sky out to redshift z ∼ 0.3 and contain more than 750 clusters.”
The ROSAT-ESO Flux Limited X-ray (REFLEX) Galaxy cluster survey. V. The cluster catalogue (2004, methodology): “It has been used previously in several projects to construct statistical galaxy cluster samples (Pierre et al. 1994; Romer et al. 1994; Ebeling et al. 1996, 1998, 2000; Burns et al. 1996; De Grandi et al. 1999; Ledlow et al. 1999; Böhringer et al. 2000, 2001c; Henry et al. 2001; Cruddace et al.…”
Determining the Cosmic Distance Scale from Interferometric Measurements of the Sunyaev-Zeldovich Effect (2002, background): “…Survey, EMSS (Gioia et al. 1990; Stocke et al. 1991; Gioia & Luppino 1994; Maccacaro et al. 1994); the ROSAT X-ray Brightest Abell Clusters, XBACs (Ebeling et al. 1996b,a); and the ROSAT Brightest Cluster Sample, BCS (Ebeling et al. 2000a; Crawford et al. 1999; Ebeling et al. 1998, 1997).”