2012A&A...538A..35C

Query : 2012A&A...538A..35C

2012A&A...538A..35C - Astronomy and Astrophysics, volume 538A35-35 (2012/2-1)

The ROSAT-ESO flux limited X-ray galaxy cluster survey (REFLEX II). I. Newly identified X-ray luminous clusters at z ≥ 0.2.

CHON G. and BOEHRINGER H.

Abstract (from CDS):

We report 19 intermediate redshift clusters newly detected in the ROSAT All-Sky survey that are spectroscopically confirmed. They form a part of 911 objects in the REFLEX II cluster catalogue with a limiting flux of 1.8x10–12erg/s/cm2 in the 0.1-2.4keV ROSAT band at redshift z≥0.2. In addition we report three clusters from the REFLEX III supplementary catalogue, which contains objects below the REFLEX II flux limit but satisfies the redshift constraint above. These clusters are spectroscopically followed-up by our ESO NTT-EFOSC2 campaigns for the redshift measurement. We describe our observing and data reduction methods. We show how X-ray properties such as spectral hardness ratio and source extent can be used as important diagnostics in selecting galaxy cluster candidates. Physical properties of the clusters are subsequently calculated from the X-ray observations. This sample contains the high mass and intermediate-redshift galaxy clusters for astrophysical and cosmological applications.

Abstract Copyright: ∼

Journal keyword(s): X-rays: galaxies: clusters - galaxies: clusters: general - galaxies: distances and redshifts

Simbad objects: 27

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Number of rows : 27
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 RXC J0052.4-5746 ClG 00 52 26.2 -57 46 50           ~ 2 0
2 MARD J012936.9-643228 ClG 01 29 43.090 -64 32 42.37           ~ 11 0
3 2MASX J01390579-2634444 G 01 39 05.7656527248 -26 34 44.745290652   19.197   17.156   ~ 2 0
4 2MASX J01391861-2634344 G 01 39 18.5866992648 -26 34 34.126144680   19.363   17.338   ~ 2 0
5 2dFGRS TGS151Z165 G 01 39 24.24 -26 22 42.2   19.479   18.231   ~ 2 0
6 RXC J0139.5-2629 ClG 01 39 33.3 -26 29 19           ~ 1 0
7 RXC J0343.5-7152 ClG 03 43 30.6 -71 52 35           ~ 1 0
8 ACO 3168 ClG 03 47 29.4 -21 49 21           ~ 11 0
9 ZwCl 0423-0053 ClG 04 25 31.2 -00 45 28           ~ 1 0
10 ACT-CL J0521.4-2754 ClG 05 21 25.9 -27 54 23           ~ 7 0
11 RXC J1013.1-1641 ClG 10 13 07.1 -16 41 18           ~ 1 0
12 ACO 1001 ClG 10 23 18.4 -06 36 17           ~ 11 0
13 2MASX J12534765-2624514 BiC 12 53 47.7008326272 -26 24 51.646799232   18.82   16.75   ~ 4 0
14 ACO 1633 ClG 12 53 52.4 -26 22 58           ~ 9 0
15 ACO 1816 ClG 13 55 44.0 -26 23 00           ~ 6 0
16 PSZ1 G006.04+29.46 ClG 16 17 38.4 -07 14 41           ~ 7 0
17 PLCKESZ G337.1-26.0 ClG 19 14 20 -59 30.8           ~ 10 0
18 RXC J2006.4-1912 ClG 20 06 25.1 -19 12 38           ~ 1 0
19 PSZRX G032.81-30.31 ClG 20 41 16.5 -13 24 54           ~ 2 0
20 ACO 3715 ClG 20 49 57.2 -30 29 33           ~ 2 0
21 ACO S 946 ClG 21 26 08.4602 -32 02 14.321           ~ 8 0
22 RXC J2149.0-3228 ClG 21 49 00.6 -32 28 28           ~ 1 0
23 RXC J2149.9-1859 ClG 21 49 48.0 -19 00 18           ~ 2 0
24 ACT-CL J2307.9-0155 ClG 23 08 21.0 -01 55 16           ~ 15 0
25 ACO 3989 ClG 23 17 55.9 -35 34 46           ~ 3 0
26 2dFGRS TGS600Z062 G 23 18 38.17 -35 37 23.1   19.382   17.861   ~ 2 0
27 PSZ1 G057.09-74.45 ClG 23 51 04.9 -19 54 48           ~ 12 0

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