2014ApJ...786..125S

Query : 2014ApJ...786..125S

2014ApJ...786..125S - Astrophys. J., 786, 125 (2014/May-2)

Comparison of galaxy clusters selected by weak-lensing, optical spectroscopy, and x-rays in the deep lens survey F2 field.

STARIKOVA S., JONES C., FORMAN W.R., VIKHLININ A., KURTZ M.J., GELLER M.J., FABRICANT D.G., MURRAY S.S. and DELL'ANTONIO I.P.

Abstract (from CDS):

We compare galaxy clusters selected in Chandra and XMM-Newton X-ray observations of the 4 deg2 Deep Lens Survey (DLS) F2 field to the cluster samples previously selected in the same field from a sensitive weak-lensing shear map derived from the DLS and from a detailed galaxy redshift survey–the Smithsonian Hectospec Lensing Survey (SHELS). Our Chandra and XMM-Newton observations cover 1.6 deg2 of the DLS F2 field, including all 12 weak-lensing peaks above a signal-to-noise ratio of 3.5, along with 16 of the 20 SHELS clusters with published velocity dispersions >500 km/s. We detect 26 extended X-ray sources in this area and confirm 23 of them as galaxy clusters using the optical imaging. Approximately 75% of clusters detected in either X-ray or spectroscopic surveys are found in both; these follow the previously established scaling relations between velocity dispersion, LX, and TX. A lower percentage, 60%, of clusters are in common between X-ray and DLS samples. With the exception of a high false-positive rate in the DLS weak-lensing search (5 out of 12 DLS candidates appear to be false), differences between the three cluster detection methods can be attributed primarily to observational uncertainties and intrinsic scatter between different observables and cluster mass.

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Journal keyword(s): galaxies: clusters: general - gravitational lensing: weak - X-rays: galaxies: clusters

Nomenclature: Table 2: [SJF2014] XJHHMM+DDMM N=24.

Simbad objects: 41

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Number of rows : 41
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 SHELS J0915.1+2954 C?G 09 15 03.5 +29 54 09           ~ 2 0
2 [SJF2014] XJ0915+2956 C?G 09 15 05.3 +29 56 16           ~ 1 0
3 CXOU J091551.8+293637 X 09 15 51.8 +29 36 37           ~ 5 0
4 CXOU J091554.4+293316 X 09 15 54.4 +29 33 16           ~ 7 0
5 [SJF2014] XJ0915+2931 C?G 09 15 55.4 +29 31 04           ~ 1 0
6 SHELS J0916.0+3028 C?G 09 15 57.1 +29 49 42           ~ 2 0
7 DLSCL J0916.0+2931 ClG 09 16 00 +29 31.6           ~ 8 0
8 CXOU J091601.1+292750 X 09 16 01.1 +29 27 50           ~ 5 0
9 [SJF2014] XJ0916+3027 C?G 09 16 08.8 +30 27 18           ~ 1 0
10 NAME Musket Ball Cluster ClG 09 16 10.9 +29 48 44           ~ 43 0
11 [SJF2014] XJ0916+2950 C?G 09 16 15.2 +29 50 30           ~ 1 0
12 SHELS J0916.3+2916 C?G 09 16 19.2 +29 15 47           ~ 2 0
13 XCLASS 3317 ClG 09 16 22.8766 +29 16 20.446           ~ 6 0
14 [SJF2014] XJ0916+2955 C?G 09 16 33.0 +29 55 11           ~ 1 0
15 SHELS J0916.7+2920 C?G 09 16 40.1 +29 19 52           ~ 2 0
16 SHELS J0916.8+2908 C?G 09 16 50.0 +29 08 19           ~ 2 0
17 SHELS J0918.1+3038 C?G 09 18 05.8 +30 37 48           ~ 2 0
18 [SJF2014] XJ0918+3039 C?G 09 18 12.3 +30 39 37           ~ 1 0
19 NSC J091810+302323 ClG 09 18 19.5 +30 24 16           ~ 8 0
20 [RRB2014] RM J091836.1+295307.8 ClG 09 18 35.9 +29 53 07           ~ 8 0
21 SHELS J0918.6+2953 C?G 09 18 38.6 +29 53 22           ~ 3 0
22 SHELS J0919.6+3032 ClG 09 19 35.0414 +30 31 56.346           ~ 15 0
23 SHELS J0920.4+3030 C?G 09 20 22.5 +30 30 29           ~ 3 0
24 ACO 781 ClG 09 20 25.4 +30 30 07           ~ 167 0
25 CXOU J092026.4+302938 ClG 09 20 26.4 +30 29 39           ~ 11 0
26 CXOU J092053.0+302800 ClG 09 20 52.5 +30 27 40           ~ 28 0
27 [SJF2014] XJ0920+2940 C?G 09 20 55.1 +29 40 54           ~ 1 0
28 SHELS J0920.9+3029 C?G 09 20 55.6 +30 28 38           ~ 3 0
29 [SJF2014] XJ0920+3035 C?G 09 20 59.1 +30 35 45           ~ 1 0
30 SHELS J0921.0+2942 C?G 09 20 59.6 +29 42 00           ~ 3 0
31 XCLASS 841 ClG 09 21 01.3 +30 05 28           ~ 5 0
32 [SJF2014] XJ0921+3034 C?G 09 21 04.1 +30 34 40           ~ 1 0
33 CXOU J092110.3+302751 ClG 09 21 10.3 +30 27 52           ~ 19 0
34 SHELS J0921.2+3028 C?G 09 21 12.7 -30 28 08           ~ 4 0
35 SHELS J0921.3+2946 C?G 09 21 13.9 +29 45 37           ~ 2 0
36 DLSCL J0921.4+3013 ClG 09 21 18.6 +30 12 13           ~ 3 0
37 [SJF2014] XJ0921+2954 C?G 09 21 19.3 +29 54 44           ~ 1 0
38 [SJF2014] XJ0921+2958 C?G 09 21 25.6 +29 58 34           ~ 1 0
39 SHELS J0921.4+2958 ClG 09 21 28.1 +29 58 20           ~ 8 0
40 [SJF2014] XJ0921+2956 C?G 09 21 47.7 +29 56 22           ~ 1 0
41 CDGS 50 ClG 23 18 30.670 +00 34 03.03           ~ 19 0

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