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J/A+A/601/A145        Catalogue of cluster members                (Foex+, 2017)

From the core to the outskirts: structure analysis of three massive galaxy clusters. Foex G., Chon G., Bohringer H. <Astron. Astrophys. 601, A145 (2017)> =2017A&A...601A.145F (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Positional data ; Redshifts Keywords: galaxies: clusters: individual: RXC J0225.9-4154 - galaxies: clusters: individual: RXC J0528.9-3927 - galaxies: clusters: individual: RXC J2308.3-0211 - X-rays: galaxies: clusters Abstract: The hierarchical model of structure formation is a key prediction of the {LAMBDA} cold dark matter model, which can be tested by studying the large-scale environment and the substructure content of massive galaxy clusters. We present here a detailed analysis of the clusters RXC J0225.9-4154, RXC J0528.9-3927, and RXC J2308.3-0211, as part of a sample of massive X-ray luminous clusters located at intermediate redshifts. We used a multiwavelength analysis, combining WFI photometric observations, VIMOS spectroscopy, and the X-ray surface brightness maps. We investigated the optical morphology of the clusters, we looked for significant counterparts in the residual X-ray emission, and we ran several statistical tests to assess their dynamical state. We correlated the results to define various substructure features, to study their properties, and to quantify their influence on simple dynamical mass estimators. RXC J0225.9-4154 has a bi-modal core, and two massive galaxy groups are located in its immediate surroundings; they are aligned in an elongated structure that is also detected in X-rays at the 1σ level. RXC J0528.9-3927 is located in a poor environment; an X-ray centroid shift and the presence of two central BCGs provide mild evidence for a recent and active dynamical history. RXC J2308.3-0211 has complex central dynamics, and it is found at the core of a superstes-cluster. The complexity of the cluster's central dynamics reflects the richness of its large-scale environment: RXC J0225 and RXC J2308 present a mass fraction in substructures larger than the typical 5-15%, whereas the isolated cluster RXC J0528 does not have any major substructures within its virial radius. The largest substructures are found in the cluster outskirts. The optical morphology of the clusters correlates with the orientation of their BCG, and with the position of the main axes of accretion. Description: Photometric and spectroscopic redshifts of the cluster members for RXCJ0225.9-4154, RXCJ0528.9-3927, and RXCJ2308.3-0211. When a spectroscopic redshift is available, the photometric value is the same. In addition, we provide a quality flag for the spectroscopic redshift and an uncertainty on the photometric estimate. We also provide a red-sequence membership flag. Spectroscopic redshifts have a typical uncertainty of 250-300km/s. Objects: -------------------------------------------------------- RA (2000) DE Designation(s) -------------------------------------------------------- 02 25 22 -42 00.5 RXCJ0225 = RXC J0225.9-4154 05 28 56.2 -39 27 49 RXCJ0528 = RXC J0528.9-3927 23 08 22.3 -02 11 29 RXCJ2308 = RXC J2308.3-0211 -------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 52 4104 Position and redshift of 4104 galaxies in three galaxy clusters
Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Cluster Cluster name (shortname) 10- 11 I2 h RAh Right ascension (J2000.0) 13- 14 I2 min RAm Right ascension (J2000.0) 16- 19 F4.1 s RAs Right ascension (J2000.0) 21 A1 --- DE- Declination sign (J2000.0) 22- 23 I2 deg DEd Declination (J2000.0) 25- 26 I2 arcmin DEm Declination (J2000.0) 28- 31 F4.1 arcsec DEs Declination (J2000.0) 33- 38 F6.4 --- zspec ? Spectroscopic redshift 40 I1 --- EZflag [0/4]? EZ (Easy redshift) quality flag (1) 42- 45 F4.2 --- zphot ? Photometric redshift 47- 50 F4.2 --- e_zphot ? rms uncertainty on photometric redshift 52 A1 --- RSflag [0/1] Red-sequence membership flag (2)
Note (1): EZ flag from 0 (solution is not reliable) to 4 (solution is highly reliable). Note (2): Red-sequence membership flag as follows: 1 = galaxy belongs to the cluster red sequence 0 = galaxy does not belong to the cluster red sequence
Acknowledgements: Gael Foex, foex.gael(at)
(End) Gael Foex [MPE, Germany], Patricia Vannier [CDS] 08-Mar-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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