2012ApJ...761..183S

Query : 2012ApJ...761..183S

2012ApJ...761..183S - Astrophys. J., 761, 183 (2012/December-3)

High-redshift cool-core galaxy clusters detected via the Sunyaev-Zel'dovich effect in the south pole telescope survey.

SEMLER D.R., SUHADA R., AIRD K.A., ASHBY M.L.N., BAUTZ M., BAYLISS M., BAZIN G., BOCQUET S., BENSON B.A., BLEEM L.E., BRODWIN M., CARLSTROM J.E., CHANG C.L., CHO H.M., CLOCCHIATTI A., CRAWFORD T.M., CRITES A.T., DE HAAN T., DESAI S., DOBBS M.A., DUDLEY J.P., FOLEY R.J., GEORGE E.M., GLADDERS M.D., GONZALEZ A.H., HALVERSON N.W., HARRINGTON N.L., HIGH F.W., HOLDER G.P., HOLZAPFEL W.L., HOOVER S., HRUBES J.D., JONES C., JOY M., KEISLER R., KNOX L., LEE A.T., LEITCH E.M., LIU J., LUEKER M., LUONG-VAN D., MANTZ A., MARRONE D.P., McDONALD M., McMAHON J.J., MEHL J., MEYER S.S., MOCANU L., MOHR J.J., MONTROY T.E., MURRAY S.S., NATOLI T., PADIN S., PLAGGE T., PRYKE C., REICHARDT C.L., REST A., RUEL J., RUHL J.E., SALIWANCHIK B.R., SARO A., SAYRE J.T., SCHAFFER K.K., SHAW L., SHIROKOFF E., SONG J., SPIELER H.G., STALDER B., STANISZEWSKI Z., STARK A.A., STORY K., STUBBS C.W., VAN ENGELEN A., VANDERLINDE K., VIEIRA J.D., VIKHLININ A., WILLIAMSON R., ZAHN O. and ZENTENO A.

Abstract (from CDS):

We report the first investigation of cool-core properties of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect. We use 13 galaxy clusters uniformly selected from 178 deg2 observed with the South Pole Telescope (SPT) and followed up by the Chandra X-ray Observatory. They form an approximately mass-limited sample (>3x1014 M☉ h–170) spanning redshifts 0.3 < z < 1.1. Using previously published X-ray-selected cluster samples, we compare two proxies of cool-core strength: surface brightness concentration (cSB) and cuspiness (α). We find that cSB is better constrained. We measure cSB for the SPT sample and find several new z > 0.5 cool-core clusters, including two strong cool cores. This rules out the hypothesis that there are no z > 0.5 clusters that qualify as strong cool cores at the 5.4σ level. The fraction of strong cool-core clusters in the SPT sample in this redshift regime is between 7% and 56% (95% confidence). Although the SPT selection function is significantly different from the X-ray samples, the high-z cSB distribution for the SPT sample is statistically consistent with that of X-ray-selected samples at both low and high redshifts. The cool-core strength is inversely correlated with the offset between the brightest cluster galaxy and the X-ray centroid, providing evidence that the dynamical state affects the cool-core strength of the cluster. Larger SZ-selected samples will be crucial in understanding the evolution of cluster cool cores over cosmic time.

Abstract Copyright: ∼

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

Simbad objects: 57

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Number of rows : 57
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 ACT-CL J0000.9-5748 ClG 00 01 00 -57 48.5           ~ 57 0
2 ClG J0030+2618 ClG 00 30 33.6 +26 18 16           ~ 65 0
3 ClG J0141-3034 ClG 01 41 32.3 -30 34 42           ~ 11 1
4 ClG J0152-1358 ClG 01 52 41.3 -13 58 13           ~ 262 3
5 ClG J0159+0030 ClG 01 59 18.2 +00 30 09           ~ 36 0
6 ClG J0216-1747 ClG 02 16 32.8 -17 47 11           ~ 16 0
7 ClG J0230+1836 ClG 02 30 26.6 +18 36 22           ~ 22 0
8 ClG J0302-0423 ClG 03 02 21.3 -04 23 29           ~ 17 0
9 ClG J0318-0302 ClG 03 18 16.61 -03 01 59.4           ~ 27 0
10 ClG J0328-2140 ClG 03 28 36.1 -21 40 04           ~ 23 0
11 ClG J0333-2456 ClG 03 33 10.2 -24 56 41           ~ 17 0
12 ClG J0340-2823 ClG 03 40 51.6 -28 23 10           ~ 10 0
13 ClG J0350-3801 ClG 03 50 43.9 -38 01 25           ~ 14 0
14 ClG J0355-3741 ClG 03 55 59.3 -37 41 46           ~ 19 0
15 ClG J0405-4100 ClG 04 05 24.3 -41 00 15           ~ 17 0
16 ACT-CL J0509.3-5342 ClG 05 09 21.40 -53 42 12.3           ~ 62 0
17 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 114 0
18 ClG J0521-2530 ClG 05 21 10.5 -25 30 36           ~ 18 0
19 ClG J0522-3624 ClG 05 22 13.8 -36 24 49           ~ 41 0
20 ACT-CL J0528-5259 ClG 05 28 05.30 -52 59 52.8           ~ 52 0
21 SPT-CL J0533-5005 ClG 05 33 37 -50 05.8           ~ 37 0
22 ClG J0542-4100 ClG 05 42 49.9 -40 59 58           ~ 67 0
23 ACT-CL J0546.6-5345 ClG 05 46 37.6557 -53 45 33.242           ~ 98 0
24 ACT-CL J0551.6-5709 ClG 05 51 36.000 -57 09 22.00           ~ 37 0
25 ZwCl 0806+2822 ClG 08 09 41.0 +28 11 58           ~ 27 0
26 ClG J0853+5759 ClG 08 53 13.4 +57 59 44           ~ 27 0
27 ClG J0926+1242 ClG 09 26 36.6 +12 42 59           ~ 43 0
28 ClG J0956+4107 ClG 09 56 03.4 +41 07 14           ~ 44 0
29 ClG J0958+4702 ClG 09 58 19.3 +47 02 00   22       ~ 21 0
30 ClG J1002+6858 ClG 10 02 07.7 +68 58 48           ~ 19 0
31 ClG J1003+3253 ClG 10 03 04.1 +32 54 28           ~ 34 0
32 ClG J1117+1744 ClG 11 17 30.2 +17 44 44           ~ 35 0
33 ClG J1120+4318 ClG 11 20 07.6 +43 18 07           ~ 65 0
34 ClG J1120+2326 ClG 11 20 57.9 +23 26 41           ~ 42 0
35 ClG J1202+5751 ClG 12 02 13.7 +57 51 53           ~ 16 0
36 ACO 1489 ClG 12 12 19.2 +27 33 14           ~ 52 0
37 ClG J1221+4918 ClG 12 21 25.0 +49 18 07           ~ 60 0
38 SDSSCGB 65816 CGG 12 22 01.9 +27 09 19           ~ 18 0
39 ClG J1226+3332 ClG 12 26 57.7 +33 32 50           ~ 228 0
40 XDCP J1230.3+1339 ClG 12 30.3 +13 39           ~ 19 0
41 ClG J1312+3900 ClG 13 12 19.4 +39 00 58           ~ 18 0
42 ZwCl 1332+5043 ClG 13 34 20.0 +50 30 54           ~ 42 0
43 ClG J1354-0221 ClG 13 54 17.00 -02 22 13.1           ~ 52 0
44 ClG J1357+6232 ClG 13 57 19.4 +62 32 42           ~ 21 0
45 ClG J1415+3611 ClG 14 15 11.1 +36 12 03           ~ 85 1
46 [VMF98] 158 ClG 14 16 28.1 +44 46 38           ~ 50 0
47 ClG J1514+3636 ClG 15 14 22.0 +36 36 22     19.0     ~ 136 0
48 ClG J1524+0957 ClG 15 24 40.3 +09 57 35           ~ 64 0
49 ClG J1641+4001 ClG 16 41 52.3 +40 01 29           ~ 43 0
50 ClG J1701+6414 ClG 17 01 22.6 +64 14 09           ~ 78 0
51 ACT-CL J2106.0-5844 ClG 21 06 04.3 -58 44 32           ~ 103 0
52 PSZSPT J2331-5052 ClG 23 31 51 -50 51.9           ~ 53 0
53 ACT-CL J2337.4-5942 ClG 23 37 24.2 -59 42 17           ~ 52 0
54 ACT-CL J2341.2-5119 ClG 23 41 12.3 -51 19 43           ~ 52 0
55 ACT-CL J2342.7-5411 ClG 23 42 45.6153 -54 11 11.527           ~ 44 0
56 ACT-CL J2355.7-5055 ClG 23 55 49.000 -50 56 13.00           ~ 37 0
57 ACT-CL J2359.7-5010 ClG 23 59 44 -50 10.2           ~ 38 0

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